Related Experiment Videos
Different temporal effects of serotonergic antagonists on passive avoidance retention
1Department of Psychiatry, Wayne State University School of Medicine, Detroit, MI 48202.
Pharmacology, Biochemistry, and Behavior
|November 1, 1987
Summary
Serotonergic receptor antagonists ketanserin, pirenperone, and mianserin impacted mouse memory. Pre-training administration impaired retention, while post-training administration improved it, suggesting a role for serotonin in learning.
Area of Science:
- Neuroscience
- Pharmacology
Background:
- The serotonergic system plays a crucial role in cognitive functions.
- Understanding its role in memory formation and retrieval is essential.
Purpose of the Study:
- To investigate the effects of specific serotonergic receptor antagonists on passive avoidance memory in mice.
- To determine the time-dependent influence of these antagonists on memory processes.
Main Methods:
- Acute administration of ketanserin, pirenperone, and mianserin to mice.
- Dose-dependent assessment of retention following pre- and post-training antagonist administration.
- Time-course analysis using pirenperone.
Main Results:
- Pre-training administration of antagonists dose-dependently impaired memory retention.
- Post-training administration of antagonists dose-dependently improved memory retention.
- Both pre- and post-training effects were found to be time-dependent.
Conclusions:
- The serotonergic nervous system exhibits differential roles in learning and memory processes.
- Timing of serotonergic modulation significantly influences memory consolidation and retrieval.