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. 2015 Apr 14;10(4):e0123636. doi: 10.1371/journal.pone.0123636

Fig 6. Temporal correlation of subicular RS cell activity to gamma frequency network oscillations.

Fig 6

(A) Examples of simultaneous LFP (top) and intracellular (bottom) recordings during gamma frequency oscillations. In stark contrast to IB neurons, without current injection RS cells usually do not generate APs during gamma frequency oscillations and the data (n = 7) solely reveals a phase-locked mixed postsynaptic current (PSP, middle left). A depolarizing current injection initiates AP generation (middle right). Depolarized and spontaneous active RS cells (n = 9) show a distribution of AP generation (right) similar to the one observed in IB cells. (B) Example traces of synaptic potentials on the left. EPSP and IPSP were recorded at −80 mV and 0 mV respectively. Maximal cumulative postsynaptic potential peak deflections occur before the maximum of LFP gamma cycle. (C) There was no significant difference between the two classes of subicular PCs concerning the EPSP (IB: n = 8, RS: n = 11; p = 0.86) and IPSP amplitude (IB: n = 5, RS: n = 5; p = 0.56).