Document Detail

Wohlgemuth was right: distracting attention from the adapting stimulus does not decrease the motion after-effect.
MedLine Citation:
PMID:  21839107     Owner:  NLM     Status:  MEDLINE    
We determined whether distracting the observer's attention from an adapting stimulus could decrease the motion after-effect. Unlike previous studies we used a relatively bias-free 2AFC procedure to measure the strength of adaptation. The strength of motion adaptation was measured by the effects of a moving grating on the contrast discrimination (T vs. C) function for gratings moving in the same or opposite direction. As in previous reports, the effect of adaptation was to move the T vs. C function upwards and rightwards, consistent with an increase in the C50 (semi-saturation) response in the transduction function of the neural mechanism underlying the discrimination. On the other hand, manipulating the attentional load of a distracting task during adaptation had no consistent effect on contrast discrimination, including the absolute detection threshold. It is suggested that previous reported effects of attentional load on adaptation may have depended on response bias, rather than changes in sensitivity.
Michael J Morgan
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Publication Detail:
Type:  Journal Article     Date:  2011-07-31
Journal Detail:
Title:  Vision research     Volume:  51     ISSN:  1878-5646     ISO Abbreviation:  Vision Res.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-10     Completed Date:  2011-12-28     Revised Date:  2014-08-20    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  2169-75     Citation Subset:  IM    
Copyright Information:
Copyright © 2011. Published by Elsevier Ltd.
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MeSH Terms
Adaptation, Physiological / physiology*
Attention / physiology*
Contrast Sensitivity / physiology
Discrimination (Psychology) / physiology
Figural Aftereffect / physiology*
Models, Neurological
Motion Perception / physiology*
Photic Stimulation / methods
Sensory Thresholds / physiology

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

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