Fig. 4

Multidimensional scaling (MDS) of population responses in unmasked and masked conditions. Each row shows two viewpoints of the result of one experiment. The curves were obtained by performing MDS simultaneously on the population responses in unmasked and masked conditions into 3D space using the cosine distance as a metric. The blue curve shows \(r_u\left( \theta \right)\) and the red curve shows \(r_m\left( \theta \right)\). The gray sphere represents the origin, and colored spheres represent the beginning of the cycle. The green arrows represent the shift in the white point between conditions. The stimuli represent the patterns at different locations on the curves for the two conditions (blue outline—unmasked condition, red outline—masked condition). The icons on the bottom left represent the configuration of the stimulus along different parts of the curves