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Target Words (target + word)
Selected AbstractsSupra-normal age-linked retrograde amnesia: Lessons from an older amnesic (H.M.)HIPPOCAMPUS, Issue 5 2009Donald G. MacKay Abstract MacKay and James (2001) demonstrated greater-than-normal retrograde amnesia (RA) for lexical-semantic information in amnesic H.M., a deficit that worsened with aging or represented supranormal age-linked RA (SARA). The present experiments extend these earlier observations to new types of information. Experiment 1 participants (H.M. and carefully matched memory-normal controls) named pictures on the Boston Naming Test and H.M. correctly named reliably fewer pictures with low frequency names, he produced unusual naming errors, and he benefited reliably less than the controls from phonological cues to the target word. Experiment 2 participants recalled irregularly-spelled aspects of familiar words in a two-choice recognition memory task and H.M. chose the correct spelling reliably less often than the controls. Experiment 3 participants read low frequency words aloud at age 73 and H.M. produced reliably more reading errors than the controls. Results of all three experiments indicate supranormal RA (SRA) for information once familiar to H.M. and comparisons with earlier studies using similar or identical stimuli indicated that H.M.'s SRA has worsened with aging from 1980 to 1999. In short, H.M. exhibits SARA for phonological and orthographic information, consistent with the MacKay and James results and with interactions between aging and amnesia predicted under binding theory. © 2008 Wiley-Liss, Inc. [source] Sentential and discourse context effects: adults who are learning to read compared with skilled readersJOURNAL OF RESEARCH IN READING, Issue 4 2007Katherine S. Binder In a series of three experiments, we examined how sentential and discourse contexts were used by adults who are learning to read compared with skilled adult readers. In Experiment 1, participants read sentence contexts that were either congruent, incongruent or neutral with respect to a target word they had to name. Both skilled and less skilled adults benefited from a congruent context, and were not disadvantaged by an incongruent context. Contrary to research conducted on children learning to read, skill level of the adult reader did not interact with context. Experiments 2 and 3 tested readers' ability to make predictive inferences. Again, all readers, regardless of skill level, provided evidence that they were making predictive inferences. This finding is inconsistent with research that has examined individual differences in college readers. [source] Electrophysiological insights into language processing in schizophreniaPSYCHOPHYSIOLOGY, Issue 6 2002Tatiana Sitnikova Deficits in language comprehension in schizophrenia were examined using event-related potentials (ERPs). Schizophrenic and healthy participants read sentences in which the first clause ended with a homograph, and the second clause started with a target word that was semantically related to the homograph's dominant meaning (e.g., 1. Diving was forbidden from the bridge because the river had rocks in it. or 2. The guests played bridge because the river had rocks in it.). Processing of the targets (e.g., "river") was expected to be primarily influenced by the preceding overall sentence context (congruent in 1; incongruent in 2) in healthy participants, but to be inappropriately affected by the dominant meaning of homographs (e.g., the "structure" meaning of "bridge") in sentences like 2 in schizophrenic patients. The N400 ERP component that is known to be sensitive to contextual effects during language processing confirmed these predictions. This showed that language abnormalities in schizophrenia may be related to deficient processing of context-irrelevant semantic representations of words from the discourse. [source] Information Sources for Noun LearningCOGNITIVE SCIENCE - A MULTIDISCIPLINARY JOURNAL, Issue 2 2005Edward Kako Abstract Why are some words easier to learn than others? And what enables the eventual learning of the more difficult words? These questions were addressed for nouns using a paradigm in which adults were exposed to naturalistic maternal input that was manipulated to simulate access to several different information sources, both alone and in combination: observation of the extralinguistic contexts in which the target word was used, the words that co-occurred with the target word, and the target word's syntactic context. Words that were not accurately identified from observation alone were both abstract (e.g., music) and concrete (e.g., tail). Whether a noun could be learned from observation depended on whether it labeled a basic-level object category (BLOC). However, the difference between BLOC labels and non-BLOC labels was eliminated when observation was supplemented with linguistic context. Thus, although BLOC labels can be learned from observation alone, non-BLOC labels require richer linguistic context. These findings support a model of vocabulary growth in which an important role is played by changes in the information to which learners have access. [source] Selective attention in anxiety: Distraction and enhancement in visual searchDEPRESSION AND ANXIETY, Issue 1 2003Mike Rinck Abstract According to cognitive models of anxiety, anxiety patients exhibit an attentional bias towards threat, manifested as greater distractibility by threat stimuli and enhanced detection of them. Both phenomena were studied in two experiments, using a modified visual search task, in which participants were asked to find single target words (GAD-related, speech-related, neutral, or positive) hidden in matrices made up of distractor words (also GAD-related, speech-related, neutral, or positive). Generalized anxiety disorder (GAD) patients, social phobia (SP) patients afraid of giving speeches, and healthy controls participated in the visual search task. GAD patients were slowed by GAD-related distractor words but did not show statistically reliable evidence of enhanced detection of GAD-related target words. SP patients showed neither distraction nor enhancement effects. These results extend previous findings of attentional biases observed with other experimental paradigms. Depression and Anxiety 18:18,28, 2003. © 2003 Wiley-Liss, Inc. [source] Effects of Word and Fragment Writing During L2 Vocabulary LearningFOREIGN LANGUAGE ANNALS, Issue 4 2007Joe Barcroft This study examined how writing (copying) target words and word fragments affects intentional second language (L2) vocabulary learning. English-speaking first-semester learners ofSpanish attempted to learn 24 Spanish nouns via word-picture repetition in three conditions: (1) word writing, (2) fragment writing, and (3) no writing. After the learning phase, the participants completed productive (picture-to-L2) and recpectively oriented (L2-to-first language) posttests. Vocabulary learning scores in the no-writing condition were higher than in the other two conditions and higher in the word-writing condition than in the fragment-writing condition. These fmdings provide new evidence on how forced Output without access to meaning can detract from early word learning by exhausting processing resources needed to encode new word forms. The pedagogical implications of the study call for language instructors to rethink the practice of encouraging students to write down a word to remember it. [source] The role of two reading strategies in text comprehension: An eye fixation study in primary school childrenJOURNAL OF RESEARCH IN READING, Issue 2 2008Menno Van Der Schoot This study examined whether 10,12-year-old children use two reading strategies to aid their text comprehension: (1) distinguishing between important and unimportant words; and (2) resolving anaphoric references. Of interest was the question to what extent use of these reading strategies was predictive of reading comprehension skill over and above decoding skill and vocabulary. Reading strategy use was examined by the recording of eye fixations on specific target words. In contrast to less successful comprehenders, more successful comprehenders invested more processing time in important than in unimportant words. On the other hand, they needed less time to determine the antecedent of an anaphor. The results suggest that more successful comprehenders build a more effective mental model of the text than less successful comprehenders in at least two ways. First, they allocate more attention to the incorporation of goal-relevant than goal-irrelevant information into the model. Second, they ascertain that the text model is coherent and richly connected. [source] Orthographic analysis of words during fluency training promotes reading of new similar wordsJOURNAL OF RESEARCH IN READING, Issue 2 2007Inez E. Berends Remediation of a serious lack in reading fluency often takes the form of repeated reading exercises. The present study examines whether transfer of training effects to untrained (neighbour) words can be enhanced by training with an orthographic focus as compared with emphasising semantics. The effect of oral versus silent reading during training is studied as well. Two groups of reading-disabled children (mean age=7 years, 11 months) were given repeated reading training with limited exposure duration (350 ms) in which 15 target words were repeated 20 times in exercises focused on either orthography (N=26) or semantics (N=25). The children were required to either read the target words aloud or perform the exercises silently, but this requirement appeared to have no effect on the training results. The results show that untrained neighbour words benefited more from training targets with an orthographic focus than from exercises with a semantic emphasis. [source] The Role of Task-Induced Involvement and Learner Proficiency in L2 Vocabulary AcquisitionLANGUAGE LEARNING, Issue 2 2008YouJin Kim Hulstijn and Laufer (2001) proposed a motivational-cognitive construct of task-induced involvement to account for variation in effectiveness among different vocabulary learning tasks. Building upon their original research, this study consisted of two experiments investigating the involvement load hypothesis in vocabulary learning. Experiment 1 compared the performance of 64 adult English as a second language (ESL) learners from a range of countries at two different proficiency levels (i.e., matriculated undergraduate students vs. students in an Intensive English Program) to ascertain the effectiveness of three vocabulary tasks with different levels of task-induced involvement. Experiment 2 investigated whether two tasks hypothesized to represent the same level of task-induced involvement would result in equivalent initial learning and retention of target words by 20 adult ESL learners at two different levels of proficiency. The results of Experiment 1 showed that a higher level of learner involvement during the task promoted more effective initial vocabulary learning and better retention of the new words. The findings of Experiment 2 indicated that when different tasks had the same involvement load, they resulted in similar amounts of initial vocabulary learning and retention of new words. The results of the two experiments are discussed in light of the involvement load hypothesis. [source] The Effect of Frequency of Input-Enhancements on Word Learning and Text ComprehensionLANGUAGE LEARNING, Issue 2 2007Susanne Rott Research on second language lexical development during reading has found positive effects for word frequency, the provision of glosses, and elaborative word processing. However, findings have been inconclusive regarding the effect of such intervention tasks on long-term retention. Likewise, few studies have looked at the cumulative effect of interventions on word learning or text comprehension. This investigation sought to assess the effect of increased frequency of target words (TWs) comparing lexical gain of words that occurred once (F1) or four times (F4) in the input passage. The study further investigated the combined effect of frequency (F4) and semantic or visual enhancements. It compared the following reading conditions: (a) TWs were glossed four times in the text (four-gloss: 4G); (b) TWs were first glossed, then retrieved in the first language, and bolded twice (gloss-retrieval: GR); and (c) TWs were first glossed and then bolded three times (gloss-bolding: GB). In addition, the study assessed the effect of these interventions on long-term retention (4,6 weeks) of lexical knowledge and on text comprehension. Findings revealed that the GR and 4G reading conditions resulted in more productive word gain than the GB condition or when readers encountered a TW only once. Repeated visual enhancements seemed to have no effect on strengthening word encoding. The comprehension of main ideas was highest when the TW was glossed four times followed by the gloss-bolding reading condition and the gloss-retrieval task. [source] Effects of a Supplemental Vocabulary Intervention on the Word Knowledge of Kindergarten Students At Risk for Language and Literacy DifficultiesLEARNING DISABILITIES RESEARCH & PRACTICE, Issue 3 2010Susan M. Loftus The purpose of this study was to examine the effectiveness of a vocabulary intervention designed to supplement research-based classroom vocabulary instruction, implemented with students who may be at risk for language and learning difficulties. Participants included 43 kindergarten students who received research-based classroom vocabulary instruction. Students with the 20 lowest scores on the Peabody Picture Vocabulary Test-III administered at pretest received additional small-group supplemental vocabulary intervention. Results of within-subjects comparisons indicated that, overall, at-risk students made greater gains in word knowledge on target words that received the supplemental intervention as compared to words that received only classroom-based instruction. In addition, at-risk students who received the supplemental intervention demonstrated word-learning gains that approached those of their peers who received classroom instruction alone. Implications along with limitations of the current study and directions for future research are discussed. [source] The time course of orthography and phonology: ERP correlates of masked priming effects in SpanishPSYCHOPHYSIOLOGY, Issue 5 2009Manuel Carreiras Abstract One key issue for computational models of visual-word recognition is the time course of orthographic and phonological information during reading. Previous research, using both behavioral and event related brain potential (ERP) measures, has shown that orthographic codes are activated very early but that phonological activation starts to occur immediately afterward. Here we report an ERP masked priming experiment in Spanish that investigates this issue further by using very strict control conditions. The critical phonological comparison was between two pairs of primes having the same orthographic similarity to the target words but differing in phonological similarity (e.g., conal - CANAL vs. cinal - CANAL vis à vis ponel - PANEL vs. pinel - PANEL), whereas the critical orthographic contrast was between pairs of primes that had the same phonological similarity to the target but differing in orthographic similarity (e.g., conal - CANAL vs. konal - CANAL). Orthographic priming was mainly observed in the 150,250-ms time window whereas phonological priming occurred in the 350,550-ms window. [source] Missed prime words within the attentional blink evoke an N400 semantic priming effectPSYCHOPHYSIOLOGY, Issue 2 2001Bettina Rolke When subjects identified a target among distractors in a rapid serial visual presentation task, the detection of a subsequent target is impaired (attentional blink). By measuring event-related potentials (ERPs) we investigated if the processing of an unidentified prime word elicits the N400 semantic priming effect. Subjects (N= 12) had to identify three target words among distractors in a rapid serial visual presentation task. We varied the association strength between a prime (second target) and a probe (third target). The detection of the prime was impaired. Missed primes did not elicit a P300, indicating that they were not explicitly recognized. Despite this difference between recognized and missed primes, the N400 effect was present in both cases. This result suggests that automatic spread of activation (ASA) can be evoked by missed primes within the attentional blink. It furthermore demonstrates that ASA is sufficient to evoke the N400 effect. [source] | ||||||||||||||||