| Finding the missing stimulus mismatch negativity (MMN): Emitted MMN to violations of an auditory gestalt. | |
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MedLine Citation:
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PMID: 22221004 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Deviations from repetitive auditory stimuli evoke a mismatch negativity (MMN). Counterintuitively, omissions of repetitive stimuli do not. Violations of patterns reflecting complex rules also evoke MMN. To detect a MMN to missing stimuli, we developed an auditory gestalt task using one stimulus. Groups of six pips (50 ms duration, 330 ms stimulus onset asynchrony [SOA], 400 trials), were presented with an intertrial interval (ITI) of 750 ms while subjects (n = 16) watched a silent video. Occasional deviant groups had missing 4th or 6th tones (50 trials each). Missing stimuli evoked a MMN (p < .05). The missing 4th (-0.8 µV, p <.01) and the missing 6th stimuli (-1.1 µV, p < .05) were more negative than standard 6th stimuli (0.3 µV). MMN can be elicited by a missing stimulus at long SOAs by violation of a gestalt grouping rule. Patterned stimuli appear more sensitive to omissions and ITI than homogenous streams. |
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Authors:
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Dean F Salisbury |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-3 |
Journal Detail:
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Title: Psychophysiology Volume: - ISSN: 1540-5958 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0142657 Medline TA: Psychophysiology Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Society for Psychophysiological Research. |
Affiliation:
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Cognitive Neuroscience Laboratory, McLean Hospital, Belmont, Massachusetts, USA; Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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