Figure 7.

Correlation of object-color statistics and color-tuning of IT color-biased regions. A. Diagram of the lateral view of the macaque brain showing the location of the color-biased regions in inferior temporal cortex (IT), anterior is to the right (Posterior Lateral color, PLc; Central Lateral color, CLc; and Anterior lateral color, ALc; Lafer-Sousa & Conway, 2013). (B) Chromaticities of the colors used in these fMRI experiments. (C) Relationship of the probability of object colors versus color-tuning of color-biased regions within IT. Object-color probability was computed as follows: number of pixels having a given color in the objects divided by the number of pixels having the same color in the objects + background, in natural images. All three regions showed higher responses for colors that were more likely to be the colors of objects (PLc: r = 0.7, p = 0.01; CLc: r = 0.72, p = 0.01; ALc: r = 0.65, p = 0.03). fMRI response (psc) = percent signal change (measured against the signal measured for gray blocks between each colored block).