Fig. 7.

TRACE in-silico lesions. a-c TRACE with all three model components intact. a The basis set. b The basis set weighted by modified GC to PC synapses after learning of the prior distribution has reached steady state. c The linearly transformed output of TRACE (orange) superimposed on the BLS function (black). d–f Same format as for a–c when there is no decay in the basis set. The asymmetry in TRACE output is lost. g–i Same as earlier panels with rapid decay of basis set. The nonlinear bias for longer intervals is abolished. j–l If no learning takes place, then there is no nonlinearity in the model output. m–o If no integration takes place, there is no monotonically increasing output, leading to significant deterioration in performance