Memory Storage Fidelity in the Hippocampal Circuit: The Role of Subregions and Input Statistics
A: Firing of three typical CA3 cells across all stored patterns plotted over the environment. Colour code as in Fig 3. B: Pairwise correlation between stored patterns in CA3 as a function of pairwise correlation in EC. Number next to regression line show its slope, r-values are shown in the upper right. C-E: Recall performance of the different simulations in CA3 (C), CA1 (D) and EC (E). Dashed lines are simulations without recurrent connections in CA3. F: Distribution of activities during recall when a cell fires during storage (solid) or is silent during storage (dashed) in CA3 when noiseless cues are given. S = ⟨St⟩t indicates the average signal term in Eq (5). G: Distribution of crosstalk terms of cells that fire (solid) and are silent during storage (dashed). H: Average overlap of two pattens p(s) and p(t) in the EC plotted over the distance of s and t. I: Probability that a CA3 cell fires at a location s given it fires at t plotted over the Euclidean distance of s and t. Inset shows zoomed plot. J: Average Overlap of two pattens p(s) and p(t) in the EC plotted over the probability a cell fires at s given it fires at t. K: Probability a cell fires at s, given it is silent at t. Inset shows zoomed plot. L: Same as F but in CA1.