Fig 11. Cue-triggered overlapping sequence completion and disambiguation.

(A) Schematic of sequential training patterns used to demonstrate completion. Roman numerals label uniquely trained subsequences that were alternatingly presented to the network, and the gray box highlights overlapping subsequence patterns. (B) Terminal average $g_{ij}^{NMDA}$ matrix resulting from (A). White Roman numerals identify regions of the weight matrix corresponding to learned connections between the non-overlapping subsequences of (A), which were reciprocally inhibiting. Black Roman numerals identify the crucial associations used for bridging the two subsequences together. (C) A cue (red star) presented to the first pattern 1 second into recall resonates through the network. (D) Schematic of the training pattern as in (A) demonstrating the problem of sequence disambiguation. (E) Terminal average $g_{ij}^{NMDA}$ matrix resulting from (D) and white Roman numerals as in (B). Here, black Roman numerals identify the crucial associations for bridging each individual subsequence together despite their shared patterns, which each form indistinguishable average connection strengths towards each branch of the fork as emphasized by the equivalent matrix cells contained within the dotted outlines. (F) Two separate cues (red and blue stars) presented 8 seconds apart each resonate through their corresponding subnetworks.