Figure 3.

Oscillatory coherence between mPFC, nRE and vCA1 during WM maintenance is lower at long delay intervals

(A–C) Spectral (left side) and average (right side) coherence during the maintenance phase for D2 (blue), D4 (green) and D6 (red) sessions for the mPFC-vCA1 (A), nRE-vCA1 (B) and nRE-mPFC (C) connections revealed delay duration-dependent reductions at specific frequencies for different parts of the network. Gray fields indicate core frequencies. Abbreviations: mPFC, medial prefrontal cortex; nRE, nucleus reuniens; vCA1, ventral CA1; Θ, Theta; β, Beta; γ, Gamma. Data are shown as mean ± SEM. ∗∗p ≤ 0.01, ∗∗∗p ≤ 0.001, ∗∗∗∗p ≤ 0.0001.