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Surprise beyond prediction error.
- Source :
- Human Brain Mapping; Sep2014, Vol. 35 Issue 9, p4805-4814, 10p
- Publication Year :
- 2014
-
Abstract
- Surprise drives learning. Various neural 'prediction error' signals are believed to underpin surprise-based reinforcement learning. Here, we report a surprise signal that reflects reinforcement learning but is neither un/signed reward prediction error (RPE) nor un/signed state prediction error (SPE). To exclude these alternatives, we measured surprise responses in the absence of RPE and accounted for a host of potential SPE confounds. This new surprise signal was evident in ventral striatum, primary sensory cortex, frontal poles, and amygdala. We interpret these findings via a normative model of surprise. Hum Brain Mapp 35:4805-4814, 2014. © 2014 The Authors. Human Brain Mapping Published by Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10659471
- Volume :
- 35
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Human Brain Mapping
- Publication Type :
- Academic Journal
- Accession number :
- 97119311
- Full Text :
- https://doi.org/10.1002/hbm.22513