Cortical markers of excitation/inhibition balance are associated with sensory responsivity from infancy in longitudinal cohorts enriched for autism and ADHD.

A higher hypo-responsivity intercept was associated with higher autistic traits ( b = 0.06, 95% CI [0.01, 0.11], p = 0.011, B = 0.49) and ADHD traits at age 3 ( b = 0.25, 95% CI [0.00, 0.49], p = 0.051, B = 0.39), although the latter on the boundary of significance.

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