Abstract
We have recently proposed a center-periphery organization based on
resolution needs, in which objects engaging in recognition processes
requiring central-vision (e.g., face-related) are associated with
center-biased representations, while objects requiring large-scale
feature integration (e.g., buildings) are associated with periphery-biased
representations. Here we tested this hypothesis by comparing the
center-periphery organization with activations to five object categories:
faces, buildings, tools, letter strings, and words. We found that
faces, letter strings, and words were mapped preferentially within
the center-biased representation. Faces showed a hemispheric lateralization
opposite to that of letter strings and words. In contrast, buildings
were mapped mainly to the periphery-biased representation, while
tools activated both central and peripheral representations. The
results are compatible with the notion that center-periphery organization
allows the optimal allocation of cortical magnification to the specific
requirements of various recognition processes.
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