Decoding the representation of multiple simultaneous objects in human occipitotemporal cortex.

ABSTRACT: Previous work using functional magnetic resonance imaging has shown that the identities of isolated objects viewed by human subjects can be extracted from distributed patterns of brain activity. Outside the laboratory, however, objects almost never appear in isolation; thus it is important to understand how multiple simultaneously occurring objects are encoded by the visual system. We used multivoxel pattern analysis to examine this issue, testing whether activity patterns in the lateral occipital complex (LOC) evoked by object pairs showed an ordered relationship to patterns evoked by their constituent objects. Applying a searchlight analysis to identify voxels with the highest signal-to-noise ratios, we found that responses to object pairs within these informative voxels were well predic

SUBMITTER: Macevoy SP 

PROVIDER: S-EPMC2875119 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature