Limitations
This study has limitations. Though a considerable number of study visits had been completed, the total number of participants involved was relatively small, especially for those who completed both placebo and high-dose visits. This limited the power of the within-group correlation analysis between the P-H sensitivity index and AQ scores. Our participant cohort comprised solely of adults (given the ethical constraints of experimental pharmaco-challenge studies in children), thus our findings do not speak to when the autistic differences in auditory electrophysiological responses to GABA