Figure 3.

The direct projection from the PER to the hippocampus (HC) is functionally important for tEBC acquisition. (A) In acquisition, the latEC is not essential (white) whereas the PER, POR, mEC, and HC are required. (B) For retention, the HC and mEC (white) are not essential, whereas the latEC is required; the PER and POR have not been tested post-acquisition. (C) Suggested function of the latEC in tEBC retention: at input in the (superficial) layers of the latEC, incoming information from the PER converges with hippocampal output from the deep latEC, forming a loop that may be used to compare current stimulus associations (HC) with established associative memories (latEC). (DG) dentate gyrus.