Table 4.

Mean (± s.e.m.) responding during the lever-alone test in Experiment 3.

rats	n	lever-press rate	lever-press probability	food-cup % time pre	food-cup % time dur
all sham	20	33.5 ± 2.9	88.1 ± 5.0	0.8 ± 0.3	4.2 ± 1.7
all CeA	20	33.2 ± 2.7	91.9 ± 4.6	1.5 ± 0.5	5.7 ± 1.5
all BLA	18	22.1 ± 2.9	73.6 ± 6.3	2.3 ± 1.4	6.0 ± 1.8
GT sham	1	0.0	0.0	2.6	30.4
GT CeA	1	0.4	12.5	9.6	28.7
GT BLA	5	8.3 ± 3.1	35.0 ± 8.3	0.0 ± 0.0	8.8 ± 4.0
ST BLA	13	27.5 ± 2.7	88.4 ± 3.0	3.2 ± 1.9	4.9 ± 1.9

The left two data columns show lever-presses/min and the percentage of trials with a lever-press, respectively. The right two data columns show the percentage of time spent in the food cup in the 10-s periods prior to (pre) and during (dur) lever presentations. CeA = rats with lesions of the amygdala central nucleus; BLA = rats with lesions of the basolateral amygdala; GT = goal-trackers; ST = sign-trackers.