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. 2012 Oct 1;35(10):1325–1334. doi: 10.5665/sleep.2106

Figure 4.

Figure 4

GABA levels in sequential dialysis samples collected during extended wakefulness. A. GABA levels in the substantia innominata (SI) were stable across time. Data represent measures from 4 cats during 8 experiments. B. GABA levels in the cerebral cortex increased progressively with increasing time spent awake. Data were obtained from 6 experiments in 3 cats.