Barabas G, Matthews W S, Ferrari M
Neurology. 1984 Jun;34(6):815-7. doi: 10.1212/wnl.34.6.815.
Disorders of arousal (somnambulism and night terrors) were significantly more common among children with Gilles de la Tourette's syndrome (n = 57) than among children with seizure disorders (n = 58) or learning disabilities (n = 53). Neurohumoral disturbances may account for the differences.