LOCKARD, J S EXTINCTION AND SPONTANEOUS RECOVERY OF THE EYELID CR AS A FUNCTION OF DELAY OF THE UCS AND THE INTERVAL BETWEEN ACQUISITION AND EXTINCTION. [electronic resource] - The Journal of general psychology Jul 1964 - 161-7 p. digital Publication Type: Journal Article ISSN: 0022-1309 Standard No.: 10.1080/00221309.1964.9710302 doi Subjects--Topical Terms: Conditioning, ClassicalExtinction, PsychologicalEyelidsHumansReflex