Fig. 1

Dup15q syndrome versus TD. a Spectral profiles of children with Dup15q syndrome (red) and TD children (blue). PSDs are averaged across channels and participants; colored highlights represent 95% confidence intervals. Power is significantly higher in Dup15q syndrome at 20.2–28.5 Hz (p < 0.05 corrected). b Dup15q syndrome topographic scalp power (mean across participants at f = 23.1 Hz). c TD topographic scalp power (mean across participants at f = 23.1 Hz). d Dup15q syndrome versus TD power difference effect sizes (Cohen’s d) at f = 23.1 Hz. Mean effect size across channels, d = 1.06 (min, d = 0.339; max, d = 1.98)