Extinction in Goldfish: Facilitation by Intracranial Injection of RNA from Brains of Extinguished Donors
Willim G. Braud 1
1 Department of Psychology, University of Houston, Houston, Texas 77004
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.