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Time Perception (time + perception)

Distribution by Scientific Domains

Medical Sciences	57%

Selected Abstracts

The Relationship between Behavioral Inhibition and Time Perception in Children

JOURNAL OF CHILD AND ADOLESCENT PSYCHIATRIC NURSING, Issue 4 2005
Julie B. Meaux PhD
PURPOSE:,To test one component of Barkley's (1997) model of executive functions by examining the relationship between behavioral inhibition and time perception in children. METHOD:,Correlation analysis was used to determine the relationships between measures of behavioral inhibition and time perception for the entire sample, and for boys (n = 34) and girls (n = 26) separately. FINDINGS:,For both parent and child measures, behavioral inhibition and time perception scores were correlated for the total group and for girls. Child measure of behavioral inhibition and time perception were not correlated for boys. CONCLUSIONS:,The findings of this study support Barkley's theory and indicate a relationship between poor behavioral inhibition and poor time perception in children. [source]

Temporal filtering by prefrontal neurons in duration discrimination

EUROPEAN JOURNAL OF NEUROSCIENCE, Issue 11 2008
Ken-ichi Oshio
Abstract Neural imaging studies have revealed that the prefrontal cortex (PFC) participates in time perception. However, actual functional roles remain unclear. We trained two monkeys to perform a duration-discrimination task, in which two visual cues were presented consecutively for different durations ranging from 0.2 to 2.0 s. The subjects were required to choose the longer cue. We recorded single-neuron activity from the PFC while the subjects were performing the task. Responsive neurons for the first cue period were extracted and classified through a cluster analysis of firing rate curves. The neuronal activity was categorized as phasic, ramping and sustained patterns. Among them, the phasic activity was the most prevailing. Peak time of the phasic activity was broadly distributed about 0.8 s after cue onset, leading to a natural assumption that the phasic activity was related to cognitive processes. The phasic activity with constant delay after cue onset might function to filter current cue duration with the peak time. The broad distribution of the peak time would indicate that various filtering durations had been prepared for estimating C1 duration. The most frequent peak time was close to the time separating cue durations into long and short. The activity with this peak time might have had a role of filtering in attempted duration discrimination. Our results suggest that the PFC contributes to duration discrimination with temporal filtering in the cue period. [source]

The Relationship between Behavioral Inhibition and Time Perception in Children

The Perception of Time: Basic Research and Some Potential Links to the Study of Language

LANGUAGE LEARNING, Issue 2008
J. H. Wearden
The article first discusses some recent work in time perception,in particular the distinction among prospective timing, retrospective timing, and passage of time judgments. The history and application of an "internal clock" model as an explanation of prospective timing performance is reviewed and contrasted with the different mechanisms needed for the other two types of time judgments. The article then discusses two areas suggesting relations between time perception research and language. The first is the idea that disturbances in the perception of duration, usually of very brief auditory stimuli, are associated with some language disorders. Another is the common use of metaphors for time, and the article relates these to the issue of whether a genuine "time sense" exists. [source]

The effect of congenital deafness on duration judgment

THE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 9 2006
Joanna Kowalska
Objective:, ,Congenital deafness provides the opportunity to study how atypical sensory and language experiences affect different aspects of information processing, e.g., time perception. Methods:, ,Using two methods of temporal estimation, reproduction (Exp. 1) and production (Exp. 2), the effect of deafness on duration judgment was investigated within a time domain of a few seconds. We examined 16 congenitally deaf adolescents, aged between 16 and 19 years, and 16 normally hearing subjects, matched for gender and age. In Exp. 1 subjects were asked to reproduce durations from 1 to 5.5 s, whereas in Exp. 2 they produced durations from 1 to 6 s. Results:, ,The results showed that in both experiments, the region of accurate estimation was significantly limited in deaf individuals, compared to normal hearing ones. Deaf adolescents judged accurately only intervals around 3 s, whereas they overestimated standards shorter than 2 s and underestimated those above 3 s. In contrast, controls correctly estimated the majority of standards applied in both experiments, with the exception of underreproduction of intervals longer than 3 s (Exp. 1). Conclusions:, ,The effect of deafness on the accuracy of duration judgment can be linked to differences in the use of conventional time units, applied strategy as well as cognitive processes such as attention or working memory. [source]

Psychosocial functioning and career decision-making in Israeli adolescent and young adult cancer survivors,,

PEDIATRIC BLOOD & CANCER, Issue 4 2010
Marilyn Stern PhD
Abstract Objectives This study examined how dispositional optimism, health vulnerability, and time perspective were related to adolescent and young adult (AYA) cancer survivors' career decision-making (CDM) and quality of life (QOL). Secondarily, how cultural factors relate to CDM and QOL among Israeli-Jewish and Israeli-Arab cancer survivors was explored. Methods Fifty-one cancer survivors (68.6% females, 80.4% Israeli-Jewish, 19.6% Israeli-Arab, Mage,=,21.45 years), at least 6 months post-active treatment (Mtime,=,5.75 years) completed self-report questionnaires. Results Multiple regression analyses indicated that optimism, vulnerability, and past negative, present fatalistic, and future time perspective were significantly associated with QOL (F(6, 47),=,6.80, P,<,0.001) and CDM (F(6, 47),=,2.46, P,<,0.04). Perceived vulnerability explained the main portion of QOL variance with greater vulnerability associated with lowered QOL (,,=,0.33, P,<,0.001). Optimism was positively associated with QOL (,,=,0.55, P,<,0.02). Greater present fatalistic time perspective was associated with greater CDM difficulties (,,=,0.32, P,<,0.05). Multivariate analyses indicated greater past negative time perceptions (F(1, 46),=,8.92, P,<,0.005) and fatalism about the future (F(1, 46),=,5.90, P,<,0.02) among Israeli-Arabs as compared to Israeli-Jewish survivors. Israeli-Jewish survivors were more optimistic than Israeli-Arab survivors (F(1, 46),=,3.48, P,<,0.065). Conclusions Vulnerability, optimism, and time perspective were significantly associated with QOL and CDM among Israeli AYA cancer survivors. Israeli-Arabs viewed their pasts and futures more negatively and reported lower optimism than Israeli-Jews. Implications for future research and interventions were considered. Pediatr Blood Cancer. 2010;55:708,713. © 2010 Wiley-Liss, Inc. [source]