Document Detail


Effects of biased feedback on learning and deciding in a vernier discrimination task.
MedLine Citation:
PMID:  10755160     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We investigate the influence of biased feedback on decision and learning processes in a vernier discrimination task. Subjects adjust their decision criteria and hence their responses according to biased external feedback. However, they do not use learning processes to encode incorrectly classified stimuli. As soon as correct feedback is restored observers regain their original performance indicating an involvement of internal criteria. If the external feedback is switched off instead of being corrected, the rebound is less vigorous. The findings contradict predictions of supervised neural network models.
Authors:
M H Herzog; M Fahle
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  39     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1999  
Date Detail:
Created Date:  2000-04-12     Completed Date:  2000-04-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  4232-43     Citation Subset:  IM; S    
Affiliation:
Center for Cognitive Science, University of Bremen, Germany. michael@klab.caltech.edu
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MeSH Terms
Descriptor/Qualifier:
Decision Making / physiology*
Discrimination (Psychology) / physiology*
Humans
Learning / physiology*
Models, Psychological
Photic Stimulation / methods
Space Perception / physiology*
Visual Acuity / physiology

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


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