Joy, R M Chronic postural restriction in the rat: its effect upon sleep patterns and the acquisition and retention of a conditioned avoidance response. [electronic resource] - Proceedings of the Western Pharmacology Society 1967 - 50 p. digital Publication Type: Journal Article ISSN: 0083-8969 Subjects--Topical Terms: AnimalsAvoidance LearningConditioning, PsychologicalEnvironmentMemoryPostureRatsSleep