Inter-areal coordination of columnar architectures during visual cortical development

Details Inter-areal coordination of columnar architectures during visual cortical development Inter-areal coordination of columnar architectures during visual cortical development

2008-01-27

arxiv.org/abs/0801.4164v1

Biology

Quantitative Biology

Neurons and Cognition

30 pages, 1 table, 6 figures

Scientific paper

The occurrence of a critical period of plasticity in the visual cortex has long been established, yet its function in normal development is not fully understood. Here we show that as the late phase of the critical period unfolds, different areas of cat visual cortex develop in a coordinated manner. Orientation columns in areas V1 and V2 become matched in size in regions that are mutually connected. The same age trend is found for such regions in the left and right brain hemisphere. Our results indicate that a function of critical period plasticity is to progressively coordinate the functional architectures of different cortical areas - even across hemispheres.

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