Foth, D L Effects of unconditioned stimulus intensity and schedules of 50 per cent partial reinforcement in human classical eyelid conditioning. [electronic resource] - Journal of experimental psychology May 1970 - 244-7 p. digital Publication Type: Journal Article ISSN: 0022-1015 Standard No.: 10.1037/h0029087 doi Subjects--Topical Terms: AdultConditioning, ClassicalConditioning, EyelidFemaleHumansMaleReinforcement ScheduleReinforcement, Psychology