Figure 2.
Corticostriatal inputs from primary sensorimotor cortex carry somatosensory (SB) and movement-related (R1A) inputs representing the just-initiated behavior to striatal output cells corresponding with the to-be-initiated movement (one of the two R2A cells). If the animal initiates a behavioral response leading to reward delivery, the currently active synapses (SB/R1A to R2A) are strengthened, increasing the likelihood that the reward-procuring behavior (R2A) will occur in response to the same somatosensory and motor input conditions (SB/R1A) in the future.
