Inactivation of CDt eliminates the automatic choice of good objects. A: Two groups of fractal objects, one associated with a large reward (good) and the other associated with a small reward (bad). After viewing many of such objects (n>100) repeatedly across several days, the gaze of the subject (macaque monkey) continues to be attracted by good objects automatically. B: Inactivation of CDt neurons by a local injection of muscimol (GABA agonist). C: Free looking task. After gaze fixation at the central spot, on some trials, a randomly chosen fractal object is presented on the left or right side. The subject may or may not make a saccade to it. This is automatic because no reward is delivered. D: The percentage of automatic saccade before (left) and during (right) muscimol injection, shown separately for good (G) and bad (B) objects, and contralateral (Contra) and ipsilateral (Ipsi) saccades.