Abstract
On a single conditioning trial, a 1-sec electric shock (.125 or.250 mA) was administered when rats entered a darkened chamber from a lighted elevated runway. Latency to enter the chamber was recorded on retention trials given 24 and 48 h later. Animals received subcutaneous injections of varying doses of lysine vasopressin or a placebo solution immediately after the training trial or immediately before the first retention trial. Nonshocked control animals showed no increase in response latencies on successive trials, nor was there a difference between the placebo and vasopressin groups under the “no-shock” condition. Treatment with lysine vasopressin increased resistance to extinction, irrespective of the time of treatment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
