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Title: Opponent appetitive-aversive neural processes underlie predictive learning of pain relief
Authors: Seymour, Ben ×
O'Doherty, John P.
Koltzenburg, Martin
Wiech, Katja
Frackowiak, Richard
Friston, Karl
Dolan, Raymond #
Issue Date: Sep-2005
Publisher: Nature publishing group
Series Title: Nature neuroscience vol:8 issue:9 pages:1234-1240
Abstract: Termination of a painful or unpleasant event can be rewarding. However, whether the brain treats relief in a similar way as it treats natural reward is unclear, and the neural processes that underlie its representation as a motivational goal remain poorly understood. We used fMRI ( functional magnetic resonance imaging) to investigate how humans learn to generate expectations of pain relief. Using a pavlovian conditioning procedure, we show that subjects experiencing prolonged experimentally induced pain can be conditioned to predict pain relief. This proceeds in a manner consistent with contemporary reward-learning theory ( average reward/loss reinforcement learning), reflected by neural activity in the amygdala and midbrain. Furthermore, these reward-like learning signals are mirrored by opposite aversion-like signals in lateral orbitofrontal cortex and anterior cingulate cortex. This dual coding has parallels to 'opponent process' theories in psychology and promotes a formal account of prediction and expectation during pain.
ISSN: 1097-6256
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Health Psychology
× corresponding author
# (joint) last author

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