432. Spruston N and Johnston D. (1992) Perforated patch-clamp analysis of the passive membrane properties of three classes of hippocampal neurons. J Neurophysiol 67:508-29 [Journal] .

NeuronCompartmentPropertyConnectivityNotes
Hippocampus CA1 pyramidal cellSomaI h.Depolarizing "sag" during larger hyperpolarizing voltage transients is indicative of Ih current in determinating the passive membrane properties of CA1 pyramidal neurons (Spruston N and Johnston D, 1992432 ). Membrane patches recorded in the cell-attached patch configuration from the soma and apical dendrites revealed an Ih that increased over sixfold from soma to distal dendrites. Ih demonstrated a mixed Na+-K+ conductance and was sensitive to low concentrations of external CsCl. As a result of Ih the propagation of subthreshold voltage transients is directionally specific. The elevated dendritic Ih density decreases EPSP amplitude and duration and reduces the time window over which temporal summation takes place (Magee JC, 1998 [Rat ]567 ).
Hippocampus CA3 pyramidal cellSomaI h.Depolarizing "sag" during larger hyperpolarizing voltage transients is indicative of Ih current in determinating the passive membrane properties of CA1 pyramidal neurons (Spruston N and Johnston D, 1992432 ).

References
432. Spruston N and Johnston D. (1992) Perforated patch-clamp analysis of the passive membrane properties of three classes of hippocampal neurons. J Neurophysiol 67:508-29 [Journal] .
567. Magee JC. (1998) Dendritic hyperpolarization-activated currents modify the integrative properties of hippocampal CA1 pyramidal neurons. J Neurosci 18:7613-24.
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