Mean + SEM for locomotor activity during habituation, followed by a test session before which rats received either saline or B/M into the PVT. There were no significant effects of phenotype or treatment for this measure, but all rats tended to decrease locomotor activity during the test session relative to habituation (p<0.0001). (ST Saline, n=5; ST B/M, n=4; GT Saline, n=6; GT B/M, n=7)