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ID 33082
file
title alternative
Study on cognitive mismatch between action-based expectations and outcomes <Summaries of the Doctoral Theses>
creator
Adachi, Shinobu
subject
Event-related potential
Cognitive mismatch
Late positive potential
Action effect
NDC
Psychology
abstract
Many people have experienced problems and frustrations with unexpected responses when operating computers or appliances. An objective index of such problems was developed using brain potential responses. Event-related potentials from expected and unexpected visual stimuli that were presented after voluntary actions were recorded and compared, in order to identify the specifi c components that refl ect the cognitive mismatch between action-based expectations and outcomes. Results indicated that a late positive potential (LPP) in a latency range of 500–700 ms was elicited to a cognitive mismatch, regardless of the choice of action, task instructions about the occurrence, or the type of expectation. Moreover, the amplitude of the potential decreased after several repetitions of the cognitive mismatch. Based on these results, a model of brain potential responses to cognitive mismatch is suggested. Furthermore, a practical application (i.e. usability testing) of the LPP was indicated. This study has increased the basic knowledge about objectively measuring of cognitive mismatch.
journal title
Bulletin of the Graduate School of Integrated Arts and Sciences, Hiroshima University. I, Studies in human sciences
volume
Volume 5
start page
69
end page
73
date of issued
2010-12-31
publisher
広島大学大学院総合科学研究科
issn
1881-7688
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2010 by Graduate School of Integrated Arts and Sciences, Hiroshima University All rights reserved
department
Graduate School of Integrated Arts and Sciences
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