Document Detail


The continuous end-state comfort effect: weighted integration of multiple biases.
MedLine Citation:
PMID:  21499901     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The grasp orientation when grasping an object is frequently aligned in anticipation of the intended rotation of the object (end-state comfort effect). We analyzed grasp orientation selection in a continuous task to determine the mechanisms underlying the end-state comfort effect. Participants had to grasp a box by a circular handle-which allowed for arbitrary grasp orientations-and then had to rotate the box by various angles. Experiments 1 and 2 revealed both that the rotation's direction considerably determined grasp orientations and that end-postures varied considerably. Experiments 3 and 4 further showed that visual stimuli and initial arm postures biased grasp orientations if the intended rotation could be easily achieved. The data show that end-state comfort but also other factors determine grasp orientation selection. A simple mechanism that integrates multiple weighted biases can account for the data.
Authors:
Oliver Herbort; Martin V Butz
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-17
Journal Detail:
Title:  Psychological research     Volume:  -     ISSN:  1430-2772     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0435062     Medline TA:  Psychol Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Psychology, University of Würzburg, Röntgenring 11, 97070, Würzburg, Germany, oliver.herbort@psychologie.uni-wuerzburg.de.
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