Hallucination-like behavioral sequences The EGF-treated monkey exhibited the following hallucination-like behavioral sequences in the bright field; the monkey bated his eyes with the hands, biting his arm, sometimes its tail. Subsequently the monkey fluttered the kick, showing its teeth, covering its left cheek with the hands. The duration (A) and frequency (B) of this behavioral sequence (namely hallucination-like behavior) were measured as described in Figure 1 legend. Bars represent mean ± SEM. **P < 0.01 compared with a reference monkey and +P < 0.05, between before and after risperidone treatment of an EGF monkey, both by two-tailed t-test (n=3 observations).
