Fig. 3

Performance of the four controls animals (white bars) and four DN animals (gray bars) on behavioral tasks. (A) Object and Spatial Delayed Recognition Span Tasks (DRST). Lesioned animals were significantly impaired compared to controls. Mean span on the y-axis. Overall group difference P =.001; Object P <.001; Spatial P =.016. (B) Conceptual Set Shifting Task (CSST). Percent errors committed by the DN animals were significantly greater than controls on Tri (P <.001), Red-Tri, and Blue-Tri switches (P <.001 and P =.001, respectively). Mean perseverative errors on the y-axis, conditions on the x-axis. (C) Conceptual Set Shifting Task (CSST). Mean perseverative errors committed by the DN animals were significantly greater than the control animals. The overall P-value for Group (main effect plus the significant interaction) was P <.001. Mean perseverative errors are on the y-axis, conditions on the x-axis. *, P <.05; **, P <.005; ***, P <.001.