Fig. 5

Associations between tactile reactivity measures and SEP responses. Partial correlations are shown for significant group by tactile reactivity interactions found in the general linear models. Positive partial correlations were observed between overall tactile reactivity and P50 (a), N80 (b), and P100 (C) amplitude for the AS group [P50: r = 0.38, p = 0.057; N80: r = 0.53, p = 0.005; P100: r = 0.52, p = 0.007], but negative (mostly non-significant) correlations for the NT group [P50: r = − 0.35, p = 0.029; N80: r = − 0.21, p = 0.208; P100: r = − 0.17, p = 0.297]. Similarly, positive partial correlations were observed between tactile hypo-reactivity specifically and P50 (ai) and P100 (ci) amplitude for the AS group [P50: r = 0.42, p = 0.032; P100: r = 0.60, p = 0.002], who showed the opposite pattern to the NT group [P50: r = − 0.32, p = 0.046; P100: r = − 0.21, p = 0.209]. All associations are controlled for age and sex. Shading indicates the 95% confidence interval on the partial correlations