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Behavioral Observations (behavioral + observation)
Selected AbstractsPain Assessment in Persons with Dementia: Relationship Between Self-Report and Behavioral ObservationJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 1 2009Ann L. Horgas RN OBJECTIVES: To investigate the relationship between self-report and behavioral indicators of pain in cognitively impaired and intact older adults. DESIGN: Quasi-experimental, correlational study of older adults. SETTING: Data were collected from residents of nursing homes, assisted living, and retirement apartments in north-central Florida. PARTICIPANTS: One hundred twenty-six adults, mean age 83; 64 cognitively intact, 62 cognitively impaired. MEASUREMENTS: Pain interviews (pain presence, intensity, locations, duration), pain behavior measure, Mini-Mental State Examination, analgesic medications, and demographic characteristics. Participants completed an activity-based protocol to induce pain. RESULTS: Eighty-six percent self-reported regular pain. Controlling for analgesics, cognitively impaired participants reported less pain than cognitively intact participants after movement but not at rest. Behavioral pain indicators did not differ between cognitively intact and impaired participants. Total number of pain behaviors was significantly related to self-reported pain intensity (,=0.40, P=.000) in cognitively intact elderly people. CONCLUSION: Cognitively impaired elderly people self-report less pain than cognitively intact elderly people, independent of analgesics, but only when assessed after movement. Behavioral pain indicators do not differ between the groups. The relationship between self-report and pain behaviors supports the validity of behavioral assessments in this population. These findings support the use of multidimensional pain assessment in persons with dementia. [source] Behavioral observation of two fungivorous beetles (Coleoptera: Tenebrionidae) on wood-decaying bracket fungus Cryptoporus volvatusENTOMOLOGICAL SCIENCE, Issue 1 2010Kohmei KADOWAKI Abstract The behavior of two sympatric beetles, Parabolitophagus felix Lewis and Ischnodactylus loripes Lewis (Tenebrionidae: Coleoptera), specialists of a bracket fungus Cryptoporus volvatus (Peck) Shear, was studied in Kyoto, central Japan. A sporocarp of C. volvatus has a distinct white volva, and a small elliptical ostiole near the base. Adults of two tenebrionids use the volval chambers of a sporocarp as mating space. Adults walked across closely located sporocarps infrequently on a tree at night (19.30,20.30 h). Field observation showed that the occupancy patterns of the volval chambers in the two species were temporally segregated: Parabolitophagus felix occupied them until May, while I. loripes occupied them in late May to early June [source] Social withdrawal behaviors in nonhuman primates and changes in neuroendocrine and monoamine concentrations during a separation paradigm,DEVELOPMENTAL PSYCHOBIOLOGY, Issue 4 2005Kristine Erickson Abstract This study investigated relationships between withdrawal behaviors in rhesus macaques and changes in monoamine metabolite and endocrine concentrations during repeated psychosocial stress. Rhesus monkeys (N,=,71) experienced maternal separation in which four separations took place during four consecutive weeks. Behavioral observations were made, as well as plasma concentrations of cortisol and cerebrospinal fluid concentrations of the serotonin, dopamine, and norepinephrine metabolites were obtained. Animals were assigned to high, moderate, and low withdrawal groups, defined using baseline durations of withdrawal behaviors. Highly withdrawn animals showed less reduction than nonwithdrawn animals in serotonin metabolite concentrations over repeated separations. Highly withdrawn macaques also failed to significantly reduce cortisol concentrations across separation weeks. More adaptation in central serotonin functioning and cortisol concentrations was seen in nonwithdrawn primates than in highly withdrawn primates; these findings have implications for increased risk of developing anxiety disorders in highly inhibited children. © 2005 Wiley Periodicals, Inc. Dev Psychobiol 46:331,339, 2005. [source] Predatory hoverflies select their oviposition site according to aphid host plant and aphid speciesENTOMOLOGIA EXPERIMENTALIS ET APPLICATA, Issue 1 2007Raki Almohamad Abstract The hoverfly Episyrphus balteatus De Geer (Diptera: Syrphidae) is an abundant and efficient aphid-specific predator. Several aphidophagous parasitoids and predators are known to respond positively to aphid-infested plants. Semiochemicals from the latter association usually mediate predator/parasitoid foraging behavior toward sites appropriate for offspring fitness. In this study, we investigated the effect of aphid host plant and aphid species on foraging and oviposition behavior of E. balteatus. Behavioral observations were conducted using the Noldus Observer v. 5.0, which allows observed insect behavior to be subdivided into different stages. Additionally, the influence of aphid species and aphid host plant on offspring fitness was tested in a second set of experiments. Acyrthosiphon pisum Harris and Megoura viciae Buckton were equally attractive for E. balteatus whereas Aphis fabae Scopoli (all Homoptera: Aphididae) were less attractive. These results were correlated with (i) the number of eggs laid, which was significantly higher for the two first aphid species, and (ii) the fitness of hoverfly larvae, pupae, and adults. Two solanaceous plant species, Solanum nigrum L. and Solanum tuberosum L. (Solanaceae), which were infested with Myzus persicae Sulzer (Homoptera: Aphididae), were also compared using the same approach. Discrimination between these two M. persicae host plants was observed, with S. tuberosum being preferred as an oviposition site by the predatory hoverfly. Larval and adult fitness was correlated with the behavioral observations. Our results demonstrated the importance of the prey,host plant association on the choice of the oviposition site by an aphid predator, which is here shown to be related to offspring fitness. [source] Urban Form and Household Activity-Travel BehaviorGROWTH AND CHANGE, Issue 2 2006RON N. BULIUNG ABSTRACT Cities and metropolitan regions face several challenges including urban sprawl, auto dependence and congestion, and related environmental and human health effects. Examining the spatial characteristics of daily household activity-travel behavior holds important implications for understanding and addressing urban transportation issues. Research of this sort can inform development of urban land use policy that encourages the use of local opportunities, potentially leading to reduced motorized travel. This article examines the potential household activity-travel response to a planned metropolitan polycentric hierarchy of activity centers. Behavioral observations have been drawn from an activity-travel survey conducted in the Portland, Oregon, metropolitan area during the mid-1990s. Evidence presented from exploratory analysis indicates an urban/suburban differential, with less daily travel and smaller activity spaces for urban households. Investigation of the travel reduction potential of the proposed land-use strategy suggests that location effects could be offset by adjustments to household sociodemographic and mobility characteristics. [source] Higher Education Classroom Fail to Meet Needs of Faculty and StudentsJOURNAL OF INTERIOR DESIGN, Issue 2 2000Lennie Scott-Webber Ph.D. OBJECTIVES: The objectives of this study were (1) to determine differences between faculty and student opinions about university classrooms when the User's Environmental Interaction Framework (UEIF) model's quadrants were considered together, (2) to determine the positive, negative, and different effects between these populations within each UEIF quadrant, and (3) to determine faculty and student use. RESEARCH DESIGN: The User's Environmental Framework (UEIF) guided the research at a large university. This framework has four quadrants: environmental/value dimensions, and behavioral/internal responses, prox-emics concepts, and interactional influences. The study had two parts: (1) a 48-question questionnaire, and (2) behavioral observations surveying both faculty and students (120 subjects) who used 15 general purpose classrooms. ANALYSIS: Stepwise Discriminant Analysis determined which subset of questions best separates student from faculty responses. Canonical Discriminant Analysis further explained relationships. KEY FINDINGS: Return rate was 67% and four observations of each classroom were conducted. Faculty and students agreed on the majority of the items. Subjects felt lighting, air quality, maintenance, equipment, and general comfort were adequate. There was a lack of commitment to the classrooms and subjects had little desire to stay in these rooms. Faculty and students disagreed on 10 questions. Faculty felt the classrooms did not convey a positive experience relating to noise control, seating flexibility, and lacked provision for social interaction. Students found signage inadequate and felt classrooms were uninspiring, nonanticipatory, and lacking symbolic meaning. Behavioral observations supported these concerns. CONCLUSION: Results indicate that general purpose classrooms on this campus do not meet all needs of faculty or students. Problem areas can be addressed through thoughtful knowledge-based interior design solutions. "I have to use a lecture format because I can't change the seating around to include group discussion." "I have to send students out into the hallway if I want to utilize a team approach in my teaching, because the seating is fixed." "I have to move the furniture at the front of the room out of my way as it looks like a used furniture store." "Technology is not integrated, nor easily accessible. It is provided ad hoc, and looks it." [source] Association with Underwater Structures in Hatchery-reared and Wild Red Snapper Lutjanus campechanus JuvenilesJOURNAL OF THE WORLD AQUACULTURE SOCIETY, Issue 2 2003Reiji Masuda Behavioral observations were conducted with red snapper juveniles to improve release strategies for stock enhancement of this species. Association with an underwater structure was compared between hatchery-reared and wild juveniles using video recording. Both hatchery-reared and wild fish tended to stay inside the structure in the daytime and outside it at night. Hatchery-reared fish spent longer periods inside the structure in the daytime, hut showed less association with the structure at night compared to the wild fish. We concluded that association behavior is innate but can be fine-tuned through experience. [source] The grandmaternal niche: Critical caretaking among Martu AboriginesAMERICAN JOURNAL OF HUMAN BIOLOGY, Issue 4 2009Brooke A. Scelza This paper expands upon the existing literature on the evolutionary importance of grandmothers by examining how direct care by grandmothers differs from care provided by other helpers within a population of Martu Aborigines. Behavioral observations were collected on ten babies who ranged from 3 months to 3 years of age. The results show that Martu grandmothers were in contact with their grandchildren more than any person other than the mother, and they were also more likely than any other category of caregiver to perform high-demand tasks, such as bathing or feeding. These results suggest that Martu grandmothers are specializing in the type of care they provide and posits that high-quality allocare is an important pathway to increased health and survival of grandchildren. Am. J. Hum. Biol., 2009. © 2009 Wiley-Liss, Inc. [source] Social segregation in male, but not female yearling rhesus macaques (Macaca mulatta)AMERICAN JOURNAL OF PRIMATOLOGY, Issue 2 2010Janice M. Hassett Abstract Males and females of many species sex-segregate, ranging from complete separation of habitats to social segregation within the same space, sometimes varying across seasons and lifespan development. Mechanisms for such segregation are not well understood, though some have suggested that sex differences in preferred juvenile behaviors lead to greater behavioral compatibility within than between sexes. This within-sex behavioral compatibility may be the source of sex-segregation. As juvenile behavioral sex differences are well-documented in rhesus monkeys, we examined sex-segregation patterns of yearling rhesus monkeys engaged in three different types of behavior: rough play, parallel play, and grooming. We observed male and female rhesus yearlings from five stable long-term age-graded social groups of 67,183 animals. Behavioral observations were designed to collect equal numbers of rough play, grooming, and parallel play bouts. In addition, sex composition and proximity to adults was recorded for each bout. Across all behaviors, more all-male groups and fewer mixed sex-groups were observed than expected by chance. All-female groups occurred at the level expected by chance. Thus, males sex-segregated regardless of type of behavior, while females did not sex-segregate. Female groups were observed in proximity to adults more often than expected by chance. These results suggest that behavioral compatibility may produce sex-segregation in male yearling rhesus monkeys, possibly preparing males and females for different social roles and segregation as adults. Am. J. Primatol. 72:87,92, 2010. © 2009 Wiley-Liss, Inc. [source] Differences of behavior, use of resources and physical conditions between dominant and subordinate hens in furnished cagesANIMAL SCIENCE JOURNAL, Issue 3 2007Tsuyoshi SHIMMURA ABSTRACT The objective of the present study was to search for differences in the behavior, use of resources and the physical condition between dominant and subordinate birds in furnished cages. In total, 60 commercial White Leghorn layers were used. At the age of 54 weeks, these birds were divided into two groups. Each group consisted of six cages with four birds per cage and six cages with six birds per cage. The dominance hierarchy was measured, to identify the highest dominant bird and the lowest subordinate bird in the hierarchy of each furnished cage. Behavioral observations using scanning techniques at 10 min intervals were conducted on the birds at 57 and 67 weeks of age for 3 days, respectively. Their physical condition (bodyweight and claw length) was also measured. Dominant birds used the dust bath more (P < 0.1) and nest box less (P < 0.01) than subordinate birds did. The use of the nest box decreased for subordinate birds from 57 to 67 weeks of age (P < 0.05). The dominant birds performed aggression and exploring more frequently than the subordinate birds (P < 0.001 and P < 0.05, respectively). In the comfort behaviors, the dominant birds performed dust-bathing, as well as the using the dust bath, more than subordinate birds did (P < 0.1). In their exploring behavior, including scratching and litter pecking, dominant birds performed both behaviors more frequently, as well as using the dust bath and dust-bathing in it, than subordinate birds did (P < 0.1 and P < 0.05, respectively). Aggression decreased for dominant birds from 57 to 67 weeks of age. In contrast, eating (P < 0.1) as well as drinking (P < 0.1) and other comfort behaviors (P < 0.1) increased for subordinate birds from 57 to 67 weeks of age. There was no significant difference between dominant and subordinate birds in their physical conditions. In conclusion, dominant birds had priority to use the dust box compared with the subordinate birds in the furnished cages. Conversely, the subordinate birds stayed in the nest box more than the dominant birds did. In the furnished cages, equipping the nest box was important not only for the birds to perform nesting behavior, but also for the subordinate birds to use the facility as a refuge especially just after introduction to the cage. [source] Effects of an environmental enrichment using a drum can on behavioral, physiological and productive characteristics in fattening beef cattleANIMAL SCIENCE JOURNAL, Issue 3 2006Toshie ISHIWATA ABSTRACT To evaluate the effects of environmental enrichment on behavioral, physiological and productive characteristics, 71 Japanese Black × Holstein steers (8 months of age; 299.5 ± 22.6 kg) were allocated to three pens in two repetitive experiments. Pen C (n = 11 and 12) consisted of a feeding alley for grain feed, a trough for dry hay, a water bowl and a resting space as a control pen. Pen D (n = 12 and 12) included a drum can (58 cm diameter ×,90 cm height) containing hay. Pen GD (n = 12 and 12) included a drum can that was placed around artificial plastic turf (30 × 120 cm) for grooming. The drum cans were removed after 5 months of installation. Behavioral observations were made for 2 h at 10 min intervals after feeding on three successive days each month for 10 months. Agonistic interactions were also continuously observed for 1 h after feeding to assess the dominance order (DO). Sampling blood and measuring bodyweight were performed bimonthly. The steers used the drum can frequently for 3 months after installation (1st, 2nd, 3rd months vs 4 months, all P < 0.05). The frequency of total eating of grain feed and hay was higher in pen D and pen GD than in pen C (both P < 0.01), while it was lowest in pen GD after removal of the drum can (P < 0.05). Grooming at the drum can was observed more frequently in pen GD than in pen D (P < 0.05). After they finished eating the grain feed, they ate hay at the drum can that contained additional hay rather than at the trough for hay (P < 0.01). Plasma dopamine concentrations were higher in pen D than in pen C (P < 0.05), and serum triglyceride concentrations were higher in pen C than in pen GD (P < 0.05) during the installation of the drum can. After removal of the drum can, serum total cholesterol concentrations became higher in pen D and GD than in pen C (both P < 0.05). Average daily gain correlated positively with the frequency of eating hay at the drum can in pen D (rs = 0.52, P < 0.01). In pen GD, the frequency of using the drum can correlated negatively with DO (rs = ,0.59, P < 0.01). Carcass belly fat was thicker in pens D and GD than in pen C (both P < 0.01). In pen GD, the frequency of eating hay (rs = 0.79, P < 0.01) and grooming at the drum can (rs = 0.63, P < 0.05) correlated positively with the marbling score. Although social factor affected the steers using the drum can, installing it in the early fattening stage encouraged the steers to eat and groom there and resulted in better carcass characteristics through the prolonged physiological positive effects. [source] Diurnal and oviposition-related changes in heart rate, body temperature and locomotor activity of laying hensANIMAL SCIENCE JOURNAL, Issue 2 2004Ashraf M. KHALIL ABSTRACT Diurnal and oviposition patterns of heart rate (HR), deep body temperature (BT) and locomotor activity (LA) in conscious and unrestrained Rhode Island Red hens were studied by a radiotelemetry system. Behavioral observations were also made on diurnal changes and during the pre- and post-laying period. Heart rate, BT and LA showed characteristic diurnal changes synchronized with a photoperiod of 15 h light and 9 h dark. In the light period, HR, BT, and LA levels were significantly higher than in the dark period (P < 0.001). Furthermore, the highest levels of these parameters were recorded just after they were fed (08.30 hours), while the lowest level was measured after lights-off and remained stable throughout the dark period. Behavioral observations indicated that during the light period the hens spent most of their time in very active movement, exhibiting various behavioral patterns. However, in the dark period the hens spent almost all their time resting. The present results suggest that performing various behavioral activities cause heat generated by muscle exertion, which plays a significant role in daily HR, BT, and LA in laying hens. However, during the 60 min before and after oviposition, LA appeared to have increased steadily toward the moment of laying, and then regressed gradually in the post-laying period to a level significantly lower than in the pre-laying period (P < 0.001). Furthermore, the pre-laying behavior of hens indicated extreme restlessness and more activity, whereas the post-laying period is characterized by less activity and increased relaxation. Consequently, laying behavior has a profound but transitory effect on HR and BT, suggesting that oviposition was probably associated with intense LA. [source] Validity of suspected alcohol and drug violations in aviation employeesADDICTION, Issue 10 2010Guohua Li ABSTRACT Aims In the United States, transportation employees who are suspected of using alcohol and drugs are subject to reasonable-cause testing. This study aims to assess the validity of suspected alcohol and drug violations in aviation employees. Methods Using reasonable-cause testing and random testing data from the Federal Aviation Administration for the years 1995,2005, we calculated the positive predictive value (PPV) and positive likelihood ratio (LR+) of suspected alcohol and drug violations. The true status of violations was based on testing results, with an alcohol violation being defined as a blood alcohol concentration of ,0.04 mg/dl and a drug violation as a test positive for marijuana, cocaine, amphetamines, phencyclidine or opiates. Results During the 11-year study period, a total of 2284 alcohol tests and 2015 drug tests were performed under the reasonable-cause testing program. The PPV was 37.7% [95% confidence interval (CI), 35.7,39.7%] for suspected alcohol violations and 12.6% (95% CI, 11.2,14.1%) for suspected drug violations. Random testing revealed an overall prevalence of 0.09% for alcohol violations and 0.6% for drug violations. The LR+ was 653.6 (95% CI, 581.7,734.3) for suspected alcohol violations and 22.5 (95% CI, 19.6,25.7) for suspected drug violations. Conclusion The discriminative power of reasonable-cause testing suggests that, despite its limited positive predictive value, physical and behavioral observation represents an efficient screening method for detecting alcohol and drug violations. The limited positive predictive value of reasonable-cause testing in aviation employees is due in part to the very low prevalence of alcohol and drug violations. [source] Predatory hoverflies select their oviposition site according to aphid host plant and aphid speciesENTOMOLOGIA EXPERIMENTALIS ET APPLICATA, Issue 1 2007Raki Almohamad Abstract The hoverfly Episyrphus balteatus De Geer (Diptera: Syrphidae) is an abundant and efficient aphid-specific predator. Several aphidophagous parasitoids and predators are known to respond positively to aphid-infested plants. Semiochemicals from the latter association usually mediate predator/parasitoid foraging behavior toward sites appropriate for offspring fitness. In this study, we investigated the effect of aphid host plant and aphid species on foraging and oviposition behavior of E. balteatus. Behavioral observations were conducted using the Noldus Observer v. 5.0, which allows observed insect behavior to be subdivided into different stages. Additionally, the influence of aphid species and aphid host plant on offspring fitness was tested in a second set of experiments. Acyrthosiphon pisum Harris and Megoura viciae Buckton were equally attractive for E. balteatus whereas Aphis fabae Scopoli (all Homoptera: Aphididae) were less attractive. These results were correlated with (i) the number of eggs laid, which was significantly higher for the two first aphid species, and (ii) the fitness of hoverfly larvae, pupae, and adults. Two solanaceous plant species, Solanum nigrum L. and Solanum tuberosum L. (Solanaceae), which were infested with Myzus persicae Sulzer (Homoptera: Aphididae), were also compared using the same approach. Discrimination between these two M. persicae host plants was observed, with S. tuberosum being preferred as an oviposition site by the predatory hoverfly. Larval and adult fitness was correlated with the behavioral observations. Our results demonstrated the importance of the prey,host plant association on the choice of the oviposition site by an aphid predator, which is here shown to be related to offspring fitness. [source] Dose-related effects following oral exposure of 2,4-dinitrotoluene on the western fence lizard, Sceloporus occidentalisENVIRONMENTAL TOXICOLOGY & CHEMISTRY, Issue 2 2008Jamie G. Suski Abstract 2,4-dintitrotoluene (2,4-DNT) is an explosive frequently found in the soil of military installations. Because reptiles can be common on these sites, ecological risk assessments for compounds such as 2,4-DNT could be improved with toxicity data specific to reptiles. Western fence lizards, Sceloporus occidentalis, were used to develop a laboratory toxicity model for reptiles. A hierarchical approach was used; acute to subchronic studies were conducted to provide toxicity data relevant to short- and long-term exposures. First, a modified median lethal dose (LD50) study was conducted on male and female lizards using a stage-wise probit model. The LD50 was 577 mg/kg for female and 380 mg/kg for male lizards. Subsequently, a subacute experiment was conducted to further assess 2,4-DNT toxicity to male lizards and to define exposure levels for a longer term, subchronic study. The subchronic study was conducted for 60 consecutive days; male lizards were exposed to 0, 9, 15, 25, 42, 70 mg/kg/d. Dose-dependent mortality was observed in the three highest dose groups (25, 42, and 70 mg/kg/d); all other animals survived the study duration. Benchmark dose model calculations based on mortality indicated a 5% effect level of 15.8 mg/kg/d. At study termination, a gross necropsy was performed, organ weights were taken, and blood was collected for clinical and hematological analysis. Body weight, kidney weight, food consumption, postdose observations, and blood chemistries all were found to be significantly different from controls at doses above 9 mg/kg/d. Also, preliminary results suggest behavioral observations, and reduced food consumption may be a sensitive indicator of toxicity. The present study indicates Sceloporus occidentalis is suitable for evaluating toxicity of compounds to reptilian species. [source] Spatial firing properties of lateral septal neuronsHIPPOCAMPUS, Issue 8 2006Yusaku Takamura Abstract The present study describes the spatial firing properties of neurons in the lateral septum (LS). LS neuronal activity was recorded in rats as they performed a spatial navigation task in an open field. In this task, the rat acquired an intracranial self-stimulation reward when it entered a certain place, a location that varied randomly from trial to trial. Of 193 neurons recorded in the LS, 81 showed place-related activity. The majority of the tested neurons changed place-related activity when spatial relations between environmental cues were altered by rotating intrafield (proximal) cues. The comparison of place activities between LS place-related neurons recorded in the present study and hippocampal place cells recorded in our previous study, using identical behavioral and recording procedures, revealed that spatial parameters (spatial information content, coherence, and cluster size) were smaller in the LS than in the hippocampus. Of the 193 LS neurons, 86 were influenced by intracranial self-stimulation rewards; 31 of these 86 were also place-related. These results, together with previous anatomical and behavioral observations, suggest that the spatial information sent from the hippocampus to the LS is modulated by and interacts with signals related to reward in the LS. © 2006 Wiley-Liss, Inc. [source] Higher Education Classroom Fail to Meet Needs of Faculty and StudentsJOURNAL OF INTERIOR DESIGN, Issue 2 2000Lennie Scott-Webber Ph.D. OBJECTIVES: The objectives of this study were (1) to determine differences between faculty and student opinions about university classrooms when the User's Environmental Interaction Framework (UEIF) model's quadrants were considered together, (2) to determine the positive, negative, and different effects between these populations within each UEIF quadrant, and (3) to determine faculty and student use. RESEARCH DESIGN: The User's Environmental Framework (UEIF) guided the research at a large university. This framework has four quadrants: environmental/value dimensions, and behavioral/internal responses, prox-emics concepts, and interactional influences. The study had two parts: (1) a 48-question questionnaire, and (2) behavioral observations surveying both faculty and students (120 subjects) who used 15 general purpose classrooms. ANALYSIS: Stepwise Discriminant Analysis determined which subset of questions best separates student from faculty responses. Canonical Discriminant Analysis further explained relationships. KEY FINDINGS: Return rate was 67% and four observations of each classroom were conducted. Faculty and students agreed on the majority of the items. Subjects felt lighting, air quality, maintenance, equipment, and general comfort were adequate. There was a lack of commitment to the classrooms and subjects had little desire to stay in these rooms. Faculty and students disagreed on 10 questions. Faculty felt the classrooms did not convey a positive experience relating to noise control, seating flexibility, and lacked provision for social interaction. Students found signage inadequate and felt classrooms were uninspiring, nonanticipatory, and lacking symbolic meaning. Behavioral observations supported these concerns. CONCLUSION: Results indicate that general purpose classrooms on this campus do not meet all needs of faculty or students. Problem areas can be addressed through thoughtful knowledge-based interior design solutions. "I have to use a lecture format because I can't change the seating around to include group discussion." "I have to send students out into the hallway if I want to utilize a team approach in my teaching, because the seating is fixed." "I have to move the furniture at the front of the room out of my way as it looks like a used furniture store." "Technology is not integrated, nor easily accessible. It is provided ad hoc, and looks it." [source] Investigation of hatching and early post-embryonic life of freshwater crayfish by in vitro culture, behavioral analysis, and light and electron microscopyJOURNAL OF MORPHOLOGY, Issue 7 2008Günter Vogt Abstract The late embryonic and early post-embryonic life period of freshwater crayfish, which is the main time period of organogenesis, is poorly investigated because of the protective brooding behavior of crayfish mothers. A combination of in vitro culture, behavioral observations, and microscopic investigations of organs involved in hatching, attachment, exploration of the environment, and searching and processing of food yielded deeper insights in this important period of life. Experiments were performed with the robust parthenogenetic marbled crayfish. The following results were obtained: (1) Marbled crayfish can be raised in simple in vitro systems from 80% embryonic development to juvenile Stage 4 with up to 100% survival; (2) Hatching is prepared by chemical weakening of the egg shell and completed by levering actions of the hatchling's appendages; (3) The telson thread, a safety line that keeps the hatchling secured to the mother, is formed by secretions from the telson and the detaching inner layer of the egg case; (4) Molting Stage-1 juveniles are secured by an anal thread that results from delayed molting of the hindgut; (5) Active attachment of the hatchlings to the maternal pleopods with their 1st pereiopods is achieved by an innate fixed action pattern; (6) In vitro, juveniles are motile from Stage 2 despite incomplete development of their balance controlling statocysts. Movement pattern and social behavior vary greatly among individuals; and (7) Feeding starts in Stage 3, when the mouthparts and the gastric mill are fully developed. Onset of feeding is innate and does not require maternal contributions. In vitro culture of the isogenic marbled crayfish is recommended for broader use in research because it enables not only time and stage-specific sampling but also precisely timed experimental manipulations. J. Morphol., 2008. © 2008 Wiley-Liss, Inc. [source] Bringing Everyday Mind Reading Into Everyday Life: Assessing Empathic Accuracy With Daily Diary DataJOURNAL OF PERSONALITY, Issue 5 2010Maryhope Howland ABSTRACT Individual differences in empathic accuracy (EA) can be assessed using daily diary methods as a complement to more commonly used lab-based behavioral observations. Using electronic dyadic diaries, we distinguished among elements of EA (i.e., accuracy in levels, scatter, and pattern, regarding both positive and negative moods) and examined them as phenomena at both the day and the person level. In a 3-week diary study of cohabiting partners, we found support for differentiating these elements. The proposed indices reflect differing aspects of accuracy, with considerable similarity among same-valenced accuracy indices. Overall there was greater accuracy regarding negative target moods than positive target moods. These methods and findings take the phenomenon of "everyday mindreading" (Ickes, 2003) into everyday life. We conclude by discussing empathic accuracies as a family of capacities for, or tendencies toward, accurate interpersonal sensitivity. Members of this family may have distinct associations with the perceiver's, target's, and relationship's well-being. [source] The Identification of Alcohol Intoxication by PoliceALCOHOLISM, Issue 6 2001John Brick Background: The identification of alcohol intoxication by police, bartenders, social hosts, and potential passengers is an important issue in the prevention of alcohol-related driving accidents. This study examines the ability of police officers to correctly identify and make ratings of the sobriety of target drinkers presented on video. Methods: Raters were asked to determine (1) whether the target drinker had been drinking alcohol, (2) whether it was "okay" to serve the target another drink, and (3) whether the target drinker was "okay" to drive. A rater confidence score for each target evaluated, as well as demographic characteristics about the raters, was obtained. Results: Drinkers were accurately targeted to low (0.08,0.09%), medium (0.11,0.13%), and high (0.15,0.16%) blood alcohol concentrations (BACs) by using a method previously described. At lower BACs, most police officers were unable to identify whether or not targets had been drinking. Raters were "pretty sure" that targets in the 0.15,0.16% range had been drinking and "not sure" whether or not they should be served another drink or drive a car. Conclusions: The ability of raters to reliably identify target drinkers who were too intoxicated to drive safely was not obtained until the BACs were relatively high. These results suggest that prevention measures must focus on improving behavioral observations made of potential drunk drivers. Implications for bartenders and social hosts are discussed. [source] MMPI Profile as an Outcome "Predictor" in the Treatment of Noncancer Pain Patients Utilizing Intraspinal Opioid TherapyNEUROMODULATION, Issue 3 2001Daniel M. Doleys PhD Objective. To evaluate changes in Minnesota Multiphasic Personality Inventory (MMPI) profiles pre- and post-treatment involving intrathecal opioid therapy. Patients and Methods. This study reports on 30 patients that were evaluated pre- and post-intraspinal opioid therapy. Treatment duration was slightly more than four years. Each patient experienced chronic non-cancer pain deemed suitable for trialing and subsequent implantation of a drug administration system (DAS). On average the patients had experienced pain for 8.4 years and had a mean of 3.2 pain-related surgeries. Results. The patients could be divided into "positive change group" and "negative change group" based upon pre- and post-treatment MMPI profiles. Those patients in the negative change group had more "normal profiles" pretreatment. This group evidenced less reduction in pain and was found to be using slightly higher levels of intraspinal opioids. Conclusions. These results would suggest that the MMPI profile may not be a good "predictor" of long-term outcome utilizing intraspinal opioid therapy. Indeed, patients with the more normal profile pretreatment did not fare as well as those with the more elevated profile. A positive change in MMPI profile from pre- to post-treatment was associated with a higher level of pain reduction. Patient selection therefore should be based not on a single test such as the MMPI, but on consistency across multiple sources of information including physical examination, complaints of pain and disability, behavioral observations, and psychological testing. [source] Even adult sex ratios in lemurs: Potential costs and benefits of subordinate males in Verreaux's sifaka (Propithecus verreauxi) in the Kirindy Forest CFPF, MadagascarAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2009Peter M. Kappeler Abstract Optimal group size and composition are determined by both the costs and benefits of group living for the group's members. Verreaux's sifakas (Propithecus verreauxi), a diurnal lemur, form multimale multifemale groups with the tendency toward even adult sex ratios despite a small average number of females per group. The unexpected presence of multiple adult males may be explained by tolerance of other group members if subordinate males provide benefits to the group that outweigh the costs associated with their presence. Results based on both demographic data collected over a 13-year period and behavioral observations suggest that subordinate males provide no benefits in terms of infant survival and defense against group takeover by outside males. Although groups with more males are more likely to win intergroup encounters, subordinate males do not participate in these encounters more often than expected. Subordinate males are not costly to other group members in terms of direct intragroup feeding competition, but aggression rates between dominant and immigrated subordinate males increase in the mating season. Even though subordinate males provide very few benefits to the group, they are not very costly either and thus may be tolerated by resident females and dominant males. This tolerance may help to partially explain the tendency towards their unusual adult sex ratio. Am J Phys Anthropol, 2009. © 2009 Wiley-Liss, Inc. [source] Food mechanical properties in three sympatric species of Hapalemur in Ranomafana National Park, MadagascarAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2009Nayuta Yamashita Abstract We investigated mechanical dietary properties of sympatric bamboo lemurs, Hapalemur g. griseus, H. aureus, and H. (Prolemur) simus, in Ranomafana National Park, Madagascar. Each lemur species relies on bamboo, though previous behavioral observations found that they specialize on different parts of a common resource (Tan: Int J Primatol 20 1999 547,566; Tan: PhD dissertation 2000 State University of New York, Stony Brook). On the basis of these earlier behavioral ecology studies, we hypothesized that specialization on bamboo is related to differences in mechanical properties of specific parts. We quantified mechanical properties of individual plant parts from the diets of the bamboo lemur species using a portable tester. The diets of the Hapalemur spp. exhibited high levels of mechanical heterogeneity. The lemurs, however, could be segregated based on the most challenging (i.e., mechanically demanding) foods. Giant bamboo culm pith was the toughest and stiffest food eaten, and its sole lemur consumer, H. simus, had the most challenging diet. However, the mechanical dietary properties of H. simus and H. aureus overlapped considerably. In the cases where lemur species converged on the same bamboo part, the size of the part eaten increased with body size. Plant parts that were harvested orally but not necessarily masticated were the most demanding, indicating that food preparation may place significant loads on the masticatory apparatus. Finally, we describe how mechanical properties can influence feeding behavior. The elaborate procurement processes of H. simus feeding on culm pith and H. griseus and H. aureus feeding on young leaf bases are related to the toughnesses of protective coverings and the lemurs' exploitation of mechanical vulnerabilities in these plants. Am J Phys Anthropol, 2009. © 2008 Wiley-Liss, Inc. [source] Developmental outcomes of infants with bronchopulmonary dysplasia: Comparison with other medically fragile infantsRESEARCH IN NURSING & HEALTH, Issue 3 2001Diane Holditch-Davis Abstract The purpose of this study was to compare the developmental outcomes and mother,infant interactions of infants with bronchopulmonary dysplasia (BPD) and those of other medically fragile infants. One-hour behavioral observations were made of the interactions of mothers with two groups of infants (23 with BPD, 39 medically fragile without BPD or neurological problems) at enrollment, every 2 months during hospitalization, 1 month after discharge, and at 6 months' and 12 months' corrected age. Assessment of the home environment also was done at 6 and 12 months. Multiple regressions were calculated separately for child mental, adaptive, language, and motor outcomes. Predictors were: home environment assessment, measures of maternal interactive behaviors (positive attention, expression of negative affect, medicalized caregiving), infant group membership, and presence of intraventricular hemorrhage (IVH) in the infant. There were no significant differences between the two groups in any of the developmental outcomes or interactive variables, and the presence of IVH had no effect on these variables. Maternal positive attention and the home environment were correlated with mental development, and mother negative affect was related to adaptive behavior for both groups. Differences in developmental and interactive behaviors between infants with BPD and other prematurely born infants found in other studies appear to be a result of chronic health problems and, thus, are not unique to infants with BPD. © 2001 John Wiley & Sons, Inc. Res Nurs Health 24: 181,193, 2001 [source] Kinship and social bonds in female chimpanzees (Pan troglodytes)AMERICAN JOURNAL OF PRIMATOLOGY, Issue 10 2009Kevin Langergraber A large body of theoretical and empirical research suggests that kinship influences the development and maintenance of social bonds among group-living female mammals, and that human females may be unusual in the extent to which individuals form differentiated social relationships with nonrelatives. Here we combine behavioral observations of party association, spatial proximity, grooming, and space use with extensive molecular genetic analyses to determine whether female chimpanzees form strong social bonds with unrelated individuals of the same sex. We compare our results with those obtained from male chimpanzees who live in the same community and have been shown to form strong social bonds with each other. We demonstrate that party association is as good a predictor of spatial proximity and grooming in females as it is in males, that the highest party association indices are consistently found between female dyads, that the sexes do not differ in the long-term stability of their party association patterns, and that these results cannot be explained as a by-product of the tendency of females to selectively range in particular areas of the territory. We also show that close kin (i.e. mother,daughter and sibling dyads) are very rare, indicating that the vast majority of female dyads that form strong social bonds are not closely related. Additional analyses reveal that "subgroups" of females, consisting of individuals who frequently associate with one another in similar areas of the territory, do not consist of relatives. This suggests that a passive form of kin-biased dispersal, involving the differential migration of females from neighboring communities into subgroups, was also unlikely to be occurring. These results show that, as in males, kinship plays a limited role in structuring the intrasexual social relationships of female chimpanzees. Am. J. Primatol. 71:840,851, 2009. © 2009 Wiley-Liss, Inc. [source] Dynamics of affective experience and behavior in depressed adolescentsTHE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 11 2009Lisa B. Sheeber Background:, Depression is often characterized as a disorder of affect regulation. However, research focused on delineating the key dimensions of affective experience (other than valence) that are abnormal in depressive disorder has been scarce, especially in child and adolescent samples. As definitions of affect regulation center around processes involved in initiating, maintaining, and modulating the occurrence, intensity, and duration of affective experiences, it is important to examine the extent to which affective experiences of depressed youth differ on these dimensions from those of healthy youth. Methods:, The affective behavior and experience of adolescents with major depressive disorder (MDD; n = 75) were compared to a demographically matched cohort of healthy adolescents (n = 77). Both samples were recruited from community high schools. A multi-source (parents and adolescent), multi-method (interviews, behavioral observations, questionnaires) assessment strategy was used to examine positive and negative affects. Results:, Depressed youth had significantly longer durations, higher frequency, and greater intensity when experiencing angry and dysphoric affects and shorter durations and less frequency of happy affect when compared to healthy youth. The most consistent, cross-method results were evident for duration of affect. Conclusions:, Clinically depressed adolescents experienced disturbances in affective functioning that were evident in the occurrence, intensity, and duration of affect. Notably, the disturbances were apparent in both positive and negative affects. [source] Social organization of the Milne-Edward's pottoAMERICAN JOURNAL OF PRIMATOLOGY, Issue 4 2005Elizabeth R. Pimley Abstract Nocturnal prosimian primates are often seen alone during their nocturnal activities, and are therefore categorized as "solitary". Recent research has shown that these animals actually possess social networks that differ among species. Here we present new information on one of the lesser studied prosimian primates, the potto, derived from fieldwork in Cameroon that employed radiotelemetry and behavioral observations. An analysis of association patterns and home-range overlaps between animals revealed that pottos associated more frequently with conspecifics than expected for a supposedly solitary primate. Certain males and females that were seen together regularly throughout the study, but were not observed to have contact with other pottos of the opposite sex, were labeled as "pairs". These pairs were found to have higher levels of association with each other than with other conspecifics. The only affiliative and sexual behaviors observed between members of the opposite sex occurred within the pairs of pottos. Although given the secretive nature of these primates, the possibility of extrapair copulations cannot be ruled out, their relatively small testis size indicates that sperm competition is not so important for this species. Am. J. Primatol. 66:317,330, 2005. © 2005 Wiley-Liss, Inc. [source] Squirrel monkey chuck call: vocal response to playback chucks based on acoustic structure and affiliative relationship with the callerAMERICAN JOURNAL OF PRIMATOLOGY, Issue 3 2002Joseph Soltis Abstract Adult female squirrel monkeys (genus Saimiri) that are socially familiar often exchange the chuck vocalization, which differs acoustically across individuals. We used behavioral observations, vocalization playback experiments, and analysis of the acoustic properties of vocalizations to investigate the effect of caller identity and acoustic structure on vocal response to playback chucks in two all-female social groups (n=10 females). Females were most likely to respond with a chuck to the playback chucks of their closely affiliated partners compared to those of nonaffiliated group members. This shows for the first time that the chuck stimulus alone is sufficient to elicit a chuck response from a female's affiliated partner. Additionally, females responded with a chuck mostly to familiar playback chucks from their own group and least to playbacks of silent controls. Unfamiliar playback chucks from the same species and a different squirrel monkey species elicited chuck responses intermediate between familiar chucks and silent controls. Post-hoc discriminant function analyses provide preliminary evidence that females are most likely to respond to unfamiliar chucks when those chucks are close in acoustic structure to familiar chucks from their own social group. These results provide a provisional explanation for error in the squirrel monkey signal processing system, in which unfamiliar chucks never heard before nevertheless elicit a chuck response if they are similar in acoustic structure to familiar group chucks. © 2002 Wiley-Liss, Inc. [source] Is the endangered Grevy's zebra threatened by hybridization?ANIMAL CONSERVATION, Issue 6 2009J. E. Cordingley Abstract Hybridization between an abundant species and an endangered species is cause for concern. When such hybridization is observed, it is both urgent and necessary to assess the level of threat posed to the endangered species. We report the first evidence of natural hybridization between two equids: the endangered Grevy's zebra Equus grevyi and the abundant plains zebra Equus burchelli. Grevy's zebra now number <3000 individuals globally, and occur only in northern Kenya and Ethiopia. In recent years, Grevy's zebra have become increasingly concentrated in the south of their range due to habitat loss in the north. Both species are sympatric in the Laikipia ecosystem of northern Kenya, where we have observed purportedly hybrid individuals. Using mitochondrial and Y chromosome DNA, we confirmed the hybrid status of the morphologically identified hybrids and demonstrate conclusively that all first-generation hybrids are the offspring of plains zebra females and Grevy's zebra males. Behaviorally, hybrids integrate themselves into plains zebra society, rather than adopting the social organization of Grevy's zebra. Two hybrids have successfully raised foals to over 3 months in age, including one which has reached adulthood, indicating the fertility of female hybrids and viability of their offspring. We hypothesize that hybridization occurs due to (1) skewed sex ratios, in favor of males, within Grevy's zebra and (2) the numerical dominance of plains zebra in the region where hybridization is occurring. Stakeholders have discussed hybridization as a potential threat to Grevy's zebra survival. We argue, however, based on behavioral observations, that hybridization is unlikely to dilute the Grevy's zebra gene pool in the short term. As a conservation concern, hybridization is secondary to more direct causes of Grevy's zebra declines. [source] | |||||||||||||||||||