Fig. 2.

Onsets and peaks for responsive amygdalar, hippocampal, and cortical electrodes in LF-ERPs (1–20 Hz). Responsiveness was assessed by merging responses to all sound categories. Responsive electrodes in the cortex showed a significantly earlier onset compared with hippocampal and amygdalar ones (F(1,45) = 4.06, P < 0.05 for cortex vs. hippocampus and F(1,43) = 8.08, P < 0.05 for cortex vs. amygdala).