Fig. 4

Inverted-U-shaped dependence of phasic responses on 1/f slope. (a) High gamma phasic auditory responses show an inverted-u-shaped state-dependent relationship with aperiodic 1/f slope. (b) Salience detection responses (oddball – standard differences) show and inverted-u-shaped relationship with aperiodic 1/f slope. (c) Pupil responses show a condition-specific inverted-u-shaped relationship with aperiodic 1/f slope for oddball trials, and a linear relationship for standard trials. ^ttp<0.10, *p < 0.05, **p < 0.01, ***p < 0.001.