Figure 4.
Differential responses to reward in lateral and medial orbitofrontal cortex. A) The proportion of medial (light grey) and lateral (dark grey) OFC neurons that represent the quantity of reward in cued and self-initiated tasks. B) Neural and behavioral (error rate and lipping responses) responses over the course of a session where monkeys are shown cues associated with different quantities of reward. Behavioral and neural responses in medial OFC track the decreasing value of reward across the course of a session. C) The relative effect of satiation on the neuronal responses:increase (light gray), decrease (black) or non-specific change, obtained in populations of single neurons within lateral (top) and medial (bottom) OFC. The activity of neurons within medial OFC, but not lateral OFC, decreases following consumption of a large quantity of water. Adapted from Bouret and Richmond (2010), with permission.