| Electrophysiological indicants of black-white discrimination performance for letter and non-letter patterns. | |
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MedLine Citation:
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PMID: 7775054 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined event-related potentials (ERPs) and behavioral measures, considered to be sensitive to the selective processing of black versus white letter and non-letter patterns, in a group of seventy-four randomly selected 6 to 8 year old children. Results demonstrated faster and more accurate behavioral performance on the experimental task for the letter than for the non-letter patterns. The ERP measures provided complementary information regarding this letter facilitation effect, indicating that the selective neural processing of letter as compared to non-letter patterns was present in the electrophysiological waveform within the initial 100-140 ms after stimulus presentation. Later ERP measures (200-260 and 500-600 ms post-stimulus) in response to the letter stimuli showed greater differences as a function of task relevance over the left than over the right hemisphere. The results from the present study indicate a remarkably early facilitative influence of stimulus type (letter versus non-letter patterns) on the luminance discrimination of these stimuli and are consistent with an overlap of linguistic and perceptual processing. |
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Authors:
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S L Miller; F B Wood |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The International journal of neuroscience Volume: 80 ISSN: 0020-7454 ISO Abbreviation: Int. J. Neurosci. Publication Date: 1995 |
Date Detail:
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Created Date: 1995-07-07 Completed Date: 1995-07-07 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0270707 Medline TA: Int J Neurosci Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 299-316 Citation Subset: IM |
Affiliation:
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Center for Molecular and Behavioral Neuroscience, Rutgers, State University of New Jersey, Newark 07102, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Automatism Child Contrast Sensitivity* Evoked Potentials, Visual Female Frontal Lobe / physiology Functional Laterality Humans Male Occipital Lobe / physiology Task Performance and Analysis Visual Perception / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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P01 HD21887/HD/NICHD NIH HHS; R01 NS19413/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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