Averaged group performance (latency (A) and path length (B)) measures in the match-to-place version of the Morris water maze. Performance across trials shows learning across all groups (black symbols and lines represent the PBS group, red symbols and lines represent the ANI group, and green symbols and lines represent the TTX group) on days 1, 2, and 4, but not on day 3, for the ANI and TTX groups. Error bars reflect SEM.