Fig. 5.
γ-Aminobutyric acid receptor type A receptor potentiation reduces stimulus-related polychronous group (PNG) size. The mean size of stimulus-related groups associated with patterns A through D decreases as γ-aminobutyric acid receptor type A channel conductance and decay times increase, consistent with the action of propofol at increasing plasma concentrations. SD for 100 trials is indicated by the correspondingly colored shaded region.