HTR2A and psychotic disorder: On the other hand, significant associations were found between 5HT2A T102C and hallucinations, aberrant motor behavior, and psychosis under the TT versus CT/CC model (hallucinations: p = 0.001, OR [95% CI] = 0.52 [0.36–0.77]; aberrant motor behavior: p = 0.03, OR [95% CI] = 0.58 [0.35–0.95]; and psychosis: p = 0.002, OR [95% CI] = 0.34 [0.17–0.67]).