Learning-induced sharpening of neuronal tuning and adaptation: Not "mixed"

Abstract Gotts et al. present an attractive model of how priming can arise from neuronal adaptation effects. Their very satisfying account helps to demystify adaptation effects. In fact, adaptation effects are even less mysterious than portrayed: While Gotts et al. state that "fMRI studies in humans that have attempted to evaluate sharpening of visual object representations with experience have … generated mixed results", referring to fMRI adaptation (fMRI-A) studies by our group and others, the results described in the cited papers are in fact entirely compatible, further establishing the usefulness of fMRI-A to probe neuronal tuning in humans.