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. 2013 Aug 2;8(8):e69952. doi: 10.1371/journal.pone.0069952

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© 2013 Evans, Stringer

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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Post-stimulus time histogram of activity in the input layer coloured according to stimulus (top) with the spike raster of the input layer (bottom) for the simultaneous presentation of four stimuli over all transforms. The first stimulus consists of 32 neurons and its transforms are represented by the first (contiguous) quarter of the input layer (neurons 1–128) over which it gradually moves, while transforms of the second, third and fourth stimuli occupy the subsequent quarters of the input layer. The four stimulus representations are generally internally synchronised and interleaved through time in perceptual cycles (for example, Transform 9: ). Occasionally, two of the stimulus representations become synchronised, however the stimulus combination is random and can be seen to change between different transforms.

Inline graphic — Post-stimulus time histogram of activity in the input layer coloured according to stimulus (top) with the spike raster of the input layer (bottom) for the simultaneous presentation of four stimuli over all transforms. The first stimulus consists of 32 neurons and its transforms are represented by the first (contiguous) quarter of the input layer (neurons 1–128) over which it gradually moves, while transforms of the second, third and fourth stimuli occupy the subsequent quarters of the input layer. The four stimulus representations are generally internally synchronised and interleaved through time in perceptual cycles (for example, Transform 9: ). Occasionally, two of the stimulus representations become synchronised, however the stimulus combination is random and can be seen to change between different transforms.