| The effect of perceptual grouping on the mismatch negativity. | |
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MedLine Citation:
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PMID: 11347876 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The mismatch negativity (MMN) was used as a probe to evaluate changes, with age, of transient auditory memory. Subjects were 16 young (M = 23 years) and 16 old (M = 72 years) people. Standard auditory stimuli were presented in trains of eight tones (1000 Hz) with either a I-s or 8-s intertrain interval (ITI). Occasionally, the first stimulus of a train was replaced with a 1200 Hz tone (deviant). The MMN was recorded while subjects watched a silent movie and ignored the sounds. Both groups of subjects showed an MMN response to deviant stimuli under the 1-s ITI condition, but MMNs were only seen for some subjects under the 8-s ITI condition. After MMN recording, subjects performed a discrimination task to the tones used for recording MMNs. Accuracy for both groups was near 100% at both ITIs. These results suggest that generation of MMN is a function of the perceptual grouping of the acoustical stimuli and that the integrity of perceptual grouping may be maintained with increased age. |
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Authors:
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H Gaeta; D Friedman; W Ritter; J Cheng |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Psychophysiology Volume: 38 ISSN: 0048-5772 ISO Abbreviation: Psychophysiology Publication Date: 2001 Mar |
Date Detail:
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Created Date: 2001-05-11 Completed Date: 2001-06-21 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0142657 Medline TA: Psychophysiology Country: United States |
Other Details:
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Languages: eng Pagination: 316-24 Citation Subset: IM |
Affiliation:
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Cognitive Electrophysiology Laboratory, New York State Psychiatric Institute, New York 10032, USA. HG84@.columbia.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aging / psychology Auditory Perception / physiology* Female Humans Male Memory / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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AG09988/AG/NIA NIH HHS; MH01225/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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