Journal
ANNUAL REVIEW OF NEUROSCIENCE
Volume 27, Issue -, Pages 369-392Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev.neuro.27.070203.144226
Keywords
cerebral cortex; visual processing; wiring economy; optimization; cortical map
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In mammalian visual cortex, neurons are organized according to their functional properties into multiple maps such as retinotopic, ocular dominance, orientation preference, direction of motion, and others. What determines the organization of cortical maps? We argue that cortical maps reflect neuronal connectivity in intracortical. circuits. Because connecting distant neurons requires costly wiring (i.e., axons and dendrites), there is an evolutionary pressure to place connected neurons as close to each other as possible. Then, cortical maps may be viewed as solutions that minimize wiring cost for given intracortical connectivity. These solutions can help us in inferring intracortical connectivity and, ultimately, in understanding the function of the visual system.
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