Fig. 4.

Representation of object shape by color-selective neurons in color patches. a Neural representation of object shapes in the activities of color-selective neurons for three patches, shown as two-dimensional MDS plots. Responses to each object shape were averaged across 8 hues. b Decoding accuracies for identifying one object out of 82 objects based on population responses in three color patches, averaged across object identities within each category (see Methods). Error bars represent s.e. Dashed lines indicate chance level (1/82 = 1.2%). c Raster plot showing responses of an AMC neuron to colored human faces of 11 identities at three views: frontal, left-, and right-profile (Supplementary Fig. 2i). d The same response in c averaged across 8 hues, showing strong correlation between left- and right-profiles, but not between frontal and profile views. e Correlation between responses to left and right profile views was computed across identities for each cell. Mean and s.e. of all neurons in three patches are plotted (n = 26 CLC cells; n = 40 ALC cells; and n = 44 AMC cells). Student’s t-test was used to determine statistical significance between patches (* p < 0.05, ** p < 0.01). f Population similarity matrices of 11 identities ×3 views in three color patches. The paradiagonal stripes in AMC indicate high correlation between responses to mirror-symmetric views of the same identity (red arrows)