title: Operator's activities at CRT terminals: a behavioural approach.
mesh_terms: D000328:Adult; D001519:Behavior; D003201:Computers; D003626:Data Display; D005133:Eye Movements; D005260:Female; D005868:Gestures; D006801:Humans; D008297:Male; D011187:Posture; D014705:Verbal Behavior