Sleep spindles in wt littermates and het Gabrg2^+/Q390X KI mice following SWO induction in vivo or DEAB injection i.p. Panels A/B show representative pre-DEAB original simultaneous EEG/EMG traces (30 s long) during NREM sleep period and sleep spindles (10–15 Hz) detected (arrowheads in the middle panels) for one wt littermate (A) and one het KI mouse (B). Individual spindle events below are expanded in smaller temporal scales. Panels C/D show summary data for sleep spindles following SWO induction in vivo (panel C, wt n = 14, male 7, female 7; het n = 15, male 7, female 8 mice) or DEAB injection (panel D, wt n = 7, male 5, female 2; het n = 8, male 2, female 6 mice). All scale bars are labelled as indicated. * indicates paired t-test significance with P < 0.05.