How predictable are spontaneous decisions and hidden intentions? Comparing classification results based on previous responses with multivariate pattern analysis of fMRI BOLD signals

Lages, M. and Jaworska, K. (2012) How predictable are spontaneous decisions and hidden intentions? Comparing classification results based on previous responses with multivariate pattern analysis of fMRI BOLD signals. Frontiers in Psychology, 3(56), pp. 1-8. (doi:10.3389/fpsyg.2012.00056)

Lages, M. and Jaworska, K. (2012) How predictable are spontaneous decisions and hidden intentions? Comparing classification results based on previous responses with multivariate pattern analysis of fMRI BOLD signals. Frontiers in Psychology, 3(56), pp. 1-8. (doi:10.3389/fpsyg.2012.00056)

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Abstract

In two replication studies we examined response bias and dependencies in voluntary decisions. We trained a linear classifier to predict “spontaneous decisions” and in the second study “hidden intentions” from responses in preceding trials and achieved comparable prediction accuracies as reported for multivariate pattern classification based on voxel activities in frontopolar cortex. We discuss implications of our findings and suggest ways to improve classification analyses of fMRI BOLD signals that may help to reduce effects of response dependencies between trials.

Item Type:Articles (Other)
Additional Information:This Document is Protected by copyright and was first published by Frontiers. All rights reserved. it is reproduced with permission.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lages, Dr Martin
Authors: Lages, M., and Jaworska, K.
College/School:College of Science and Engineering > School of Psychology
Journal Name:Frontiers in Psychology
Publisher:Frontiers Research Foundation
ISSN:1664-1078
ISSN (Online):1664-1078
Published Online:06 March 2012
Copyright Holders:Copyright © 2012 The Authors
First Published:First published in Frontiers of Psychology 2012 3(56):1-8
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
546481Perceived 3D trajectory of line motionMartin LagesLeverhulme Trust (LEVERHULME)F/00179/BGPSY - PSYCHOLOGY
449881Social interaction - a cognitive-neurosciences approachSimon GarrodEconomic & Social Research Council (ESRC)ES/E020933/1INP - CENTRE FOR COGNITIVE NEUROIMAGING
543381Fluctuations in visual awareness - motion induced blindness and binocular rivalryMartin LagesWellcome Trust (WELLCOME)093637/Z/10/ZPSY - PSYCHOLOGY
553271Fluctuations in visual awareness - motion-induced blindness and binocular rivalryMartin LagesThe Nuffield Foundation (NUFFIELD)URB/38463PSY - PSYCHOLOGY