Subject CH12 fMRI results at baseline, FOd30, and FOd90. (A and B) Subject CH12 showed no cortical activation at baseline for high- and medium-contrast stimuli. (C and D) At FOd30, significant bilateral cortical activations were observed in response to the high-contrast stimulus (C), whereas no response was recorded for the medium-contrast stimulus (D). (E and F) At FOd90, CH12’s cortical responses to the same stimuli markedly increased especially for the high-contrast stimulus. Smaller clusters of activations are observed in response to medium-contrast stimulus at FOd90 (F).