Abstract：
:Functional localizers are routinely used in neuroimaging studies to test hypotheses about the function of specific brain areas. The specific tasks and stimuli used to localize particular regions vary widely from study to study even when the same cortical region is targeted. Thus, it is important to ask whether task and stimulus changes lead to differences in localization or whether localization procedures are largely immune to differences in tasks and contrasting stimuli. We present two experiments and a literature review that explore whether face localizer tasks yield differential localization in the fusiform gyrus as a function of task and contrasting stimuli. We tested standard localization tasks-passive viewing, 1-back, and 2-back memory tests--and did not find differences in localization based on task. We did, however, find differences in the extent, strength and patterns/reliabilities of the activation in the fusiform gyrus based on comparison stimuli (faces vs. houses compared to faces vs. scrambled stimuli).
journal_name
Neuroimagejournal_title
NeuroImageauthors
Berman MG,Park J,Gonzalez R,Polk TA,Gehrke A,Knaffla S,Jonides Jdoi
10.1016/j.neuroimage.2009.12.024subject
Has Abstractpub_date
2010-03-01 00:00:00pages
56-71issue
1eissn
1053-8119issn
1095-9572pii
S1053-8119(09)01312-3journal_volume
50pub_type
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