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Mood as Representation of Momentum

Eldar, E; Rutledge, RB; Dolan, RJ; Niv, Y; (2016) Mood as Representation of Momentum. Trends in Cognitive Sciences , 20 (1) pp. 15-24. 10.1016/j.tics.2015.07.010. Green open access

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Abstract

Experiences affect mood, which in turn affects subsequent experiences. Recent studies suggest two specific principles. First, mood depends on how recent reward outcomes differ from expectations. Second, mood biases the way we perceive outcomes (e.g., rewards), and this bias affects learning about those outcomes. We propose that this two-way interaction serves to mitigate inefficiencies in the application of reinforcement learning to real-world problems. Specifically, we propose that mood represents the overall momentum of recent outcomes, and its biasing influence on the perception of outcomes 'corrects' learning to account for environmental dependencies. We describe potential dysfunctions of this adaptive mechanism that might contribute to the symptoms of mood disorders.

Type: Article
Title: Mood as Representation of Momentum
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.tics.2015.07.010
Publisher version: http://dx.doi.org/10.1016/j.tics.2015.07.010
Language: English
Additional information: © 2015 Elsevier Ltd. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Keywords: Mood, decision making, reinforcement learning
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Imaging Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/1475731
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