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. 2009 Apr 13;4(4):e5183. doi: 10.1371/journal.pone.0005183

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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The cortex from each subject was segmented with FreeSurfer (Fischl, Sereno, Tootell and Dale, 1999) to show gyri (light) and sulci (dark) on the cortical surface, then inflated to a sphere and aligned to a common coordinate system The functional and anatomical data were then mapped onto a Mollweide equal-area projection after rotating the sphere so that the intersection of Heschl's gyrus (HG) and the superior temporal gyrus (STG) lay at the map center with the STG aligned along the equator. Stimulus-dependent activations (SDAs) averaged over all auditory stimulation conditions and subjects during sparse imaging experiments are shown on the average anatomy of the left hemisphere. Activations were restricted to the regions of auditory cortex near HG with the outlined region enlarged in the figures shown below. Colored voxels show significant activations (t>3.0) with mean percent signal changes ranging from 0.1–1.0% (red to yellow).