Nocturnal sleep-related scratching disorder as a possible variant of NREM arousal disorder: Clinical features and polysomnographic study of four newly reported cases.

On interview, mild depression was detected that was confirmed by the interpretation of the Minnesota Multiphasic Personality Inventory provided by the chief of psychology at the hospital, who stated that there were “mild depressive trends of borderline significance.” There was no other history of past or current parasomnia and no psychiatric history.

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