Automatic Adaptation to Fast Input Changes in a Time-Invariant Neural Circuit
Fig 6
Linear filters from spike-triggered correlation analyses, estimated at different times around a sudden shift from low (L) to high (H) contrast.
(a,b) Adapted from [27]. (a) Timeline of experiment. (b) Experimentally measured filters (low contrast, blue; high contrast, red). High contrast filter is computed only from the response to the first 200 ms of high contrast stimulus (see timeline in (a)). (c) Simulated response filters of the principal cell of the nonlinear predictive coding circuit (Methods), showing oscillatory structure.