A single 50 mg/kg (i.p.) injection of Pentylene-tetrazol (Metrazol) produced retrograde amnesia (RA) for a passive avoidance trial in the mouse. Contrary to an earlier report , the Metrazol effect depended on the time interval between training and injection; significant performance impairments occurred when the injection was given up to 20 min but not 60 min following training. In a second experiment, it was found that the degree to which Metrazol resulted in RA depended on the reinforcement magnitude in the learning trial.
- Passive avoidance
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Behavioral Neuroscience