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. 2009 Apr 9;4(4):e5163. doi: 10.1371/journal.pone.0005163

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Hsieh, Tse.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(a) A typical retinotopic map of the flattened left hemisphere occipital pole for one subject is shown with the approximate borders between the retinotopic areas specified in black. Retinotopic area masks were individually specified for each hemisphere of each subject. Blue here represents the lower vertical meridian, cyan/green the horizontal meridian, and red the vertical meridian. (b) A typical retinotopic map of the flattened left hemisphere occipital pole for one subject is shown with the approximate borders specified in black between the central (<4.6 visual degrees), middle (4.6–7.8 visual degrees), and peripheral (>7.8 visual degrees) areas.