Fig. 3.

Cumulative food intake by 20 h food deprived rats treated with LH administration of picrotoxin or bicuculline. Unilateral cannula in LH was implanted as mentioned in the methods. The drug testing was started following the recovery from surgery and the stabilization of food intake during the 4 h period. Both picrotoxin and bicuculline were tested in the same group of cannulated rats. However, an interval of 3 days was allowed between the testing with these agents. Each point represents mean ± SEM; n = 5 to 6.