Selective inhibition in CA3: A mechanism for stable pattern completion through heterosynaptic plasticity
Fig 12
Pattern completion task and results.
(A) Pattern completion task and results. Two orthogonal inputs (A and B, overlap = 0) are presented simultaneously during the encoding. During the retrieval, 100 cues are constructed with linearly varying similarity to A and B (overlaps sum to 1), each presented for 7.2 s (30 phases) without further learning. (B) Learned Rc weight matrix after training on A and B. (C) Retrieval performance versus cue similarity to A ( A–Cue). Performance is measured by the probability of retrieving A (blue) or B (purple) across 30 phases. (D) Change in neural representation (
output) versus cue discrimination ((
A–Cue), averaged over 30 phases.