| Preattentive binding of auditory and visual stimulus features. | |
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MedLine Citation:
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PMID: 15811243 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We investigated the role of attention in feature binding in the auditory and the visual modality. One auditory and one visual experiment used the mismatch negativity (MMN and vMMN, respectively) event-related potential to index the memory representations created from stimulus sequences, which were either task-relevant and, therefore, attended or task-irrelevant and ignored. In the latter case, the primary task was a continuous demanding within-modality task. The test sequences were composed of two frequently occurring stimuli, which differed from each other in two stimulus features (standard stimuli) and two infrequently occurring stimuli (deviants), which combined one feature from one standard stimulus with the other feature of the other standard stimulus. Deviant stimuli elicited MMN responses of similar parameters across the different attentional conditions. These results suggest that the memory representations involved in the MMN deviance detection response encoded the frequently occurring feature combinations whether or not the test sequences were attended. A possible alternative to the memory-based interpretation of the visual results, the elicitation of the McCollough color-contingent aftereffect, was ruled out by the results of our third experiment. The current results are compared with those supporting the attentive feature integration theory. We conclude that (1) with comparable stimulus paradigms, similar results have been obtained in the two modalities, (2) there exist preattentive processes of feature binding, however, (3) conjoining features within rich arrays of objects under time pressure and/or longterm retention of the feature-conjoined memory representations may require attentive processes. |
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Authors:
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István Winkler; István Czigler; Elyse Sussman; János Horváth; Lászlo Balázs |
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Publication Detail:
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Type: 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: Journal of cognitive neuroscience Volume: 17 ISSN: 0898-929X ISO Abbreviation: J Cogn Neurosci Publication Date: 2005 Feb |
Date Detail:
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Created Date: 2005-04-06 Completed Date: 2005-05-27 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8910747 Medline TA: J Cogn Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 320-39 Citation Subset: IM |
Affiliation:
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Institute for Psychology, Hungarian Academy of Sciences, Budapest, Hungary. iwinkler@cogpsyphy.hu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation* Adolescent Adult Analysis of Variance Attention / physiology* Brain / physiology* Brain Mapping Electroencephalography / methods Evoked Potentials / physiology* Female Humans Male Memory / physiology Photic Stimulation* Reaction Time / physiology Speech Perception |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC04263/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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