<p>Significant differences in PPI scores were observed. EE led to the highest PPI compared with all groups (<i>P</i><0.0001). Following MPH treatment, the EES group showed higher PPI compared with control (<i>P</i><0.0001) and stress (<i>P</i><0.001) groups. A panel of representative traces demonstrate the differences in maximal response inhibition (at pre-intensity of 69 dB) of all four groups, with and without MPH. n = 9 to 10 per group.</p
