Fig. 6
From: Atypical audio-visual neural synchrony and speech processing in early autism

Phase-shift distribution between speech envelope and visual motion. This figure shows the phase-shift distribution between the brain processes of speech envelope and visual motion stimuli for each group. The circular mean of the phase-shift across all subjects is indicated by colored lines: red for the ASD group and black for the TD group. Corresponding polar histograms in red (ASD) and black (TD) visually represent the distribution of phase-shifts for each group. Both groups were tested against the hypothetical uniform distribution of delta (rayleigh test, ASD: p < 0.001, rayleigh r = 0.98, TD: p < 0.001, rayleigh r = 0.98) and theta phase (rayleigh test, ASD: p < 0.001, rayleigh r = 0.95, TD: p < 0.001, rayleigh r = 0.96)