Extinction in goldfish: facilitation by intracranial injection of RNA from brains of extinguished donors.
Extracts rich in RNA were prepared from the brains of goldfish that had acquired and then extinguished a light-signaled avoidance to shock in an aquatic shuttle-box. Recipient fish injected intracranially with such extracts extinguished the response significantly faster than those injected with extracts prepared from brains of naive donors.
D000818:Animals; D001362:Avoidance Learning; D001923:Brain Chemistry; D003530:Cyprinidae; D005108:Extinction, Psychological; D012313:RNA / Q000494:pharmacology*
D012313:RNA