Figure 4.

Adaptive coding predicted by different adaptive coding models. Shown are predictions of neural activation in the dual-alternative experiment, based on theoretical parameter values as adapted from the models described by Louie et al. (2011), i.e., the difference model (model 1), the basic divisive normalization model (model 2), the enhanced divisive normalization model (model 3), and the full divisive normalization model (model 4).