Document Detail


Conjoining auditory and visual features during high-rate serial presentation: processing and conjoining two features can be faster than processing one.
MedLine Citation:
PMID:  9529908     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The time required to conjoin stimulus features in high-rate serial presentation tasks was estimated in auditory and visual modalities. In the visual experiment, targets were defined by color, orientation, or the conjunction of color and orientation features. Responses were fastest in color conditions, intermediate in orientation conditions, and slowest in conjunction conditions. Estimates of feature conjunction time (FCT) were derived on the basis of a model in which features were processed in parallel and then conjoined, permitting FCTs to be estimated from the difference in reaction times between conjunction and the slowest single-feature condition. Visual FCTs averaged 17 msec, but were negative for certain stimuli and subjects. In the auditory experiment, targets were defined by frequency, location, or the conjunction of frequency and location features. Responses were fastest in frequency conditions, but were faster in conjunction than in location conditions, yielding negative FCTs. The results from both experiments suggest that the processing of stimulus features occurs interactively during early stages of feature conjunction.
Authors:
D L Woods; C Alain; K H Ogawa
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Perception & psychophysics     Volume:  60     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-04-28     Completed Date:  1998-04-28     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  239-49     Citation Subset:  IM    
Affiliation:
University of California, Davis, USA. dlwoods@ucdavis.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Attention*
Auditory Perception*
Color Perception
Discrimination Learning*
Female
Humans
Loudness Perception
Male
Middle Aged
Orientation
Pattern Recognition, Visual
Pitch Discrimination
Psychophysics
Reaction Time*
Serial Learning*
Visual Perception*
Grant Support
ID/Acronym/Agency:
NS-32893/NS/NINDS NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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