In search of systems consolidation

Abstract

Systems consolidation solves the stability-plasticity-dilemma and is a persuasive theory within the neuroscience of memory. The study by Tallman et al. (this issue) adds to the current literature showing that brain activity changes over time follow a power function in some neocortical areas but not in the hippocampus. In our comment, we suggest that a power function may, however, not be the only model that needs to be considered for such an analysis. We also highlight that reasoning by the absence of statistical significance should be replaced by appropriate statistics (e.g., using superiority or equivalence tests).

Keywords: Equivalence; Long-term memory; Model fit; Systems consolidation; fMRI.