influence of retaliation, the sporadic reappearance of atavistic delinquency, the mitigating circumstances of fanaticism, hypnotic suggestion and somnambulism.

From which (if any) of these mental or physical disorders was he not totally immune?

From hypnotic suggestion: once, waking, he had not recognised his sleeping apartment: more than once, waking, he had been for an indefinite time incapable of moving or uttering sounds. From somnambulism: once, sleeping, his body had risen, crouched and crawled in the direction of a heatless fire and, having attained its destination, there, curled, unheated, in night attire had lain, sleeping.

Had this latter or any cognate phenomenon declared itself in any member of his family?