Appendix 4—figure 1. Subjective report of transcranial ultrasonic stimulation (TUS) audibility (Exp. IV).

(A) Depicting the percentage of blocks for which participants reported a condition as audible, uncertain, or inaudible. When no mask was applied, TUS was audible (green) in nearly all cases. During continuous masking, TUS was experienced as inaudible (red) less often at higher stimulation intensities. Descriptively, reports of inaudibility scale with motor-evoked potential (MEP) amplitudes such that in conditions where TUS was inaudible more frequently, less motor inhibition was observed. (B) Motor inhibitory effects during masked stimulation, split by audibility. Descriptively, when masking rendered TUS inaudible, less motor inhibition was observed than when participants were uncertain or when stimulation was heard.