Fig. 3: Spatial frequency and object-like shapes determine unique representational content for V1 and V4 in silico univariate fMRI responses.
From: In silico discovery of representational relationships across visual cortex
a, V1 versus V4 neural control scores and controlling or baseline images obtained by applying univariate RNC jointly on the in silico fMRI responses of all 8 participants for the 73,000 NSD images. Photos from the COCO image dataset/Flickr85. b, Results of ten independent generative univariate RNC evolutions using in silico fMRI responses averaged across all eight participants. For each neural control condition, the plots show the in silico univariate fMRI responses (represented by coloured lines) and the PNG compression file size (represented by black lines) for the best generated image of each genetic algorithm generation, averaged across the ten evolutions. The vertical dashed lines indicate the generation where the univariate response threshold is reached (also averaged across evolutions), after which the PNG compression file size starts decreasing. On top of each plot are the optimized images from the ten evolutions.
