Fig. 5. Various delays significantly impair the accuracy of hippocampal lesion mice across delay durations.

(a) When animals were tested on an unpredictable variable delay (maximum separation of ≥4 spaces apart), hippocampal lesion mice had significantly worse accuracy across all delay periods. (b) No significant difference between lesion and control were seen on latency during sample phase, choice phase or reward retrieval on any of the 4 delay durations. n = 8/treatment. *p<.05.