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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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Significant activations with the color showing the tone location producing maximal activation at that point on the cortical surface. Red = ipsilateral ear, green = binaural, blue = contralateral ear. Averaged over subjects, attention, image acquisition, frequencies and hemispheres. z-score threshold = 4.0.