Figure 6.
LTP of the dentate gyrus field EPSP (fEPSP) following HFS of the medial perforant pathway in SD and WKY rats. SD rats exhibited early and late phase LTP of the fEPSP (A). In contrast, WKY rats did not demonstrate LTP at either early or late time points (B). Displayed are input–output (i/o) curves showing the baseline response, early phase LTP and late phase LTP. Shown are an average of two i/o curves generated prior to HFS (baseline), an average of i/o curves generated 15-min and 1-h after HFS (early), and an average of i/o curves generated 2- and 3-h after HFS (late).