Environmental enrichment enhances spatial learning and memory in the Morris water maze.

<p>The graph displays the effects of environmental enrichment, relative to standard housing, for 9 weeks on the behaviour of mice in this task. Mice were tested for 3 consecutive days (6 trials per day) at the end of the respective housing period. The average latency to find the hidden platform on each trial day is shown. The values represent means ± SEM, n = 10.