Brief Communication abstract
Nature Neuroscience 10, 685 - 686 (2007)
Published online: 7 May 2007 | doi:10.1038/nn1900
Only some spatial patterns of fMRI response are read out in task performance
Mark A Williams1,2, Sabin Dang1 & Nancy G Kanwisher1,3,4
Classification methods show that the spatial pattern of a functional magnetic resonance imaging response across the cortex contains category information, but whether such patterns are used, or 'read out', in behavioral performance remains untested. We show that although the spatial pattern in both the retinotopic and lateral occipital cortex (LOC) in humans contains category information, only in the LOC is the pattern stronger for correct than for incorrect trials. Thus, some, but not all, spatial patterns are read out during task performance.
- McGovern Institute for Brain Research, 77 Massachusetts Avenue, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
- Macquarie Centre for Cognitive Science, Macquarie University, Sydney, NSW 2109, Australia.
- Brain Cognitive Sciences, 77 Massachusetts Avenue, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
- Athinoula A. Martinos Center for Biomedical Imaging, 149 Thirteenth Street, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA.
Correspondence to: Mark A Williams1,2 e-mail: markow@mit.edu
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