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Alternative models for the organization of color-tuned neurons in V1. The gray patches depict cytochrome-oxidase blobs. Dots show color-tuned neurons that are clustered in blobs, but mixed randomly within each blob (A); clustered in blobs, and segregated according to color tuning within pure-color blobs (B); randomly arranged with respect to blobs (C); and clustered within blobs and according to a micromap in which cells of similar tuning are adjacent within a given blob (D).
