Explanatory Pluralism: An Unrewarding Prediction Error for Free Energy Theorists

Brain and Cognition 112:3–12 (2017)
  Copy   BIBTEX


Courtesy of its free energy formulation, the hierarchical predictive processing theory of the brain (PTB) is often claimed to be a grand unifying theory. To test this claim, we examine a central case: activity of mesocorticolimbic dopaminergic (DA) systems. After reviewing the three most prominent hypotheses of DA activity—the anhedonia, incentive salience, and reward prediction error hypotheses—we conclude that the evidence currently vindicates explanatory pluralism. This vindication implies that the grand unifying claims of advocates of PTB are unwarranted. More generally, we suggest that the form of scientific progress in the cognitive sciences is unlikely to be a single overarching grand unifying theory.

Author Profiles

Cory Wright
California State University, Long Beach
Matteo Colombo
Tilburg University


Added to PP

791 (#12,168)

6 months
90 (#17,063)

Historical graph of downloads since first upload
This graph includes both downloads from PhilArchive and clicks on external links on PhilPapers.
How can I increase my downloads?