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Fig. 2 | BMC Neuroscience

Fig. 2

From: A gradient of frequency-dependent synaptic properties along the longitudinal hippocampal axis

Fig. 2

Stimulation-induced short-term changes in synaptic transmission plotted as a function of stimulus frequency and the slice position along the dorsoventral axis of the hippocampus. Results for six representative fEPSPs evoked during the ten-pulse stimulation train are presented in the different 3D graphs. In order to better illustrate fEPSP changes induced by low and high stimulation frequencies the left and right views of the 3D graphs are shown in separate figures. In particular, the left view is shown here whereas the right view is presented in the following Fig. 3. Note that the most dorsal hippocampal slices displayed facilitation over a wide range of stimulation frequencies (from 1 Hz to 40 Hz) and over the whole stimulation train whereas the most ventral slices showed depression over the entire range of stimulation frequencies and the duration of stimulation. Also, note that the response changed from facilitation to depression gradually rather than abruptly from the dorsal to the ventral hippocampus

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