Fig. 3.

Effects of GBL and 1,4-BD on behaviors recorded during the 30-min continuous observation session using a laptop computer. During the session, the frequency and duration of all behaviors that occurred were continuously recorded from 60 to 90 min after drug or vehicle (V) was administered. Data shown are group means (±1 standard error of the mean) for frequency of vomit/retch, ataxia, tremor/jerk, and scratch/groom and the duration (seconds) of lying down and lip droop. *p<0.05 represents significant difference between a drug dose and vehicle as determined by post hoc tests