Figure 7.

Simple object-discrimination task. (A) Illustration of the object discrimination task, using only one arm (arm 4) of the maze (other arms unused are colored in light gray). Two novel objects (a toy kid and an oil can) were used and the rule was to choose the toy kid always regardless of its location in the choice platform. (B) The number of trials required to reach the criterion performance level in each group (CTRL, control lesion group; LES, neurotoxic lesion group). (C) Performance in the same task with SAL or MUS injections in mPFC. Data from the 2 d of SAL or MUS injection conditions were combined. (D) Latency to choosing an object in the task with SAL or MUS injections (2 d of SAL or MUS injections averaged). All graphs show mean ± SEM.