(S)-MCPG (100 μM) has no detectable effects on basal spine formation or elimination mechanisms in WT slice cultures. (S)-MCPG prevents the increase in spine turnover triggered by TBS and interferes with the mechanisms of activity-dependent spine stabilization in Hippocampal slice cultures.

MCPG (intraventricular injection; 20 μg) treated rat are slower to learn the task and takes longer to reach the platform than vehicle injected animals. On days 2 and 3, MCPG rats has a significant longer escape latency and the measure of search error is significantly longer on each of the first 3 days. On day 4, MCPG-treated animals reaches the same level of performance as control animals in Morris water maze.