文章基本信息

标题：How Predictable are “Spontaneous Decisions” and “Hidden Intentions”? Comparing Classification Results Based on Previous Responses with Multivariate Pattern Analysis of fMRI BOLD Signals
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作者：Lages, Martin ; Jaworska, Katarzyna
期刊名称：Frontiers in Psychology
电子版ISSN：1664-1078
出版年度：2012
卷号：3
页码：1-8
DOI：10.3389/fpsyg.2012.00056
出版社：Frontiers Media
摘要：In two replication studies we examined response bias and sequential dependencies in binary decisions. We applied a linear classifier (SVM) to predict spontaneous decisions as well as hidden intentions from responses in preceding trials and achieve similar prediction accuracies as multivariate pattern classification of voxel activities in frontopolar cortex. We discuss implications of our findings and suggest a simple way to improve analyses of fMRI BOLD signals to contain effects of sequential dependencies between trials.
关键词：Decision Making; fMRI BOLD signal; free will; multivariate classification analysis; prediction accuracy; Prefrontal Cortex; Response bias; sequential dependency