Kessler, P Neonatal thyroxine treatment enhances classical conditioning in the infant rat. [electronic resource] - Hormones and behavior Sep 1980 - 204-10 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. ISSN: 0018-506X Standard No.: 10.1016/0018-506x(80)90029-x doi Subjects--Topical Terms: Age FactorsAnimalsConditioning, Classical--drug effectsRatsRetention, PsychologySodium Hydroxide--pharmacologyThyroxine--pharmacology