Figure 2.
A) Summary of the number of the mean (+SE) number of errors made per trial during Blocks 1and 2 of testing as LDTg single unit activity was recorded. Block 2 included either reward switch or reward omission conditions. Neither manipulation significantly impacted the error count. B) Top Similar to Figure 1D, rats preferentially selected the large reward arms during the test phases of the trials. Random reward omission did not change this preference. Bottom Switching the location of the large and small rewards resulted in a significant reduction in choices to maze arms that previously contained large rewards, indicating the expectation for rewards of particular magnitudes significantly affected choice behavior. C) Mean (+/− SE) velocity of the rats before and after they arrived at the reward location (T0). It can be seen that the peak velocity was higher when rats approached locations that were expected to have large rewards as compared to approaches to locations that contained small rewards.