Fig. 8.

(A) General activity profiles (in task 1 and task 2) observed within four VTC regions (three within the pITG) and two LPC regions that we propose are engaged in different aspects of numerical cognition (time courses shown are not real data). Vertical dotted lines indicate the timing of onset in these different brain regions. (B) Proposed sequence of coupling between the brain regions in A, with earlier VTC–LPC loops more engaged in visual processing/attention and later loops engaged in carrying out the arithmetic computation.