showed a trendP =.068
This was evidenced by the ‘recovery’ of robust LTD during the R mid stage of reversal when mice were shifting and relearning the choice: significant LTD after the third (t(8)=5.33, P <.01) and second (t(8)=3.80, P <.01) sets of trains and showed a trend for LTD after first (t(8)=2.62, P =.068) set of trains ( Figure 4E,F ).