Pain-avoidance versus reward-seeking: an experimental investigation

N. Claes, G. Crombez, J.W.S. Vlaeyen

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

According to fear-avoidance models, a catastrophic interpretation of a painful experience may give rise to pain-related fear and avoidance, leading to the development and maintenance of chronic pain problems in the long term. However, little is known about how exactly motivation and goal prioritization play a role in the development of pain-related fear. This study investigates these processes in healthy volunteers using an experimental context with multiple, competing goals. In a differential human fear-conditioning paradigm, 57 participants performed joystick movements. In the control condition, one movement (conditioned stimulus; CS+) was followed by a painful electrocutaneous unconditioned stimulus (pain-US) in 50% of the trials, whereas another movement (nonreinforced conditioned stimulus; CS-) was not. In the experimental condition, a reward in the form of lottery tickets (reward-US) accompanied the presentation of the pain-US. Participants were classified into 3 groups, as a function of the goal, they reported to be the most important: (1) pain-avoidance, (2) reward-seeking, and (3) both goals being equally important. Results indicated that neither the reward co-occurring with pain nor the prioritized goal modulated pain-related fear. However, during subsequent choice trials, participants selected the painful movement more often when the reward was presented compared with the context in which the reward was absent. The latter effect was dependent on goal prioritization, with more frequent selections in the reward-seeking group, and the least selections in the pain-avoidance group. Taken together, these results underscore the importance of competing goals and goal prioritization in the attenuation of avoidance behavior.
Original languageEnglish
Pages (from-to)1449-1457
Number of pages9
JournalPain
Volume156
Issue number8
DOIs
Publication statusPublished - Aug 2015

Keywords

  • ACQUISITION
  • Avoidance
  • BACK-PAIN
  • BEHAVIOR
  • CHRONIC MUSCULOSKELETAL PAIN
  • EFFECT SIZE
  • FEAR-AVOIDANCE
  • GOAL-PURSUIT
  • Goal competition
  • Goal importance
  • MODEL
  • MOVEMENT-RELATED PAIN
  • Motivation
  • PARADIGM
  • Pain
  • Pain-related fear
  • Reward

Cite this

Claes, N. ; Crombez, G. ; Vlaeyen, J.W.S. / Pain-avoidance versus reward-seeking: an experimental investigation. In: Pain. 2015 ; Vol. 156, No. 8. pp. 1449-1457.
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Pain-avoidance versus reward-seeking: an experimental investigation. / Claes, N.; Crombez, G.; Vlaeyen, J.W.S.

In: Pain, Vol. 156, No. 8, 08.2015, p. 1449-1457.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Vlaeyen, J.W.S.

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AB - According to fear-avoidance models, a catastrophic interpretation of a painful experience may give rise to pain-related fear and avoidance, leading to the development and maintenance of chronic pain problems in the long term. However, little is known about how exactly motivation and goal prioritization play a role in the development of pain-related fear. This study investigates these processes in healthy volunteers using an experimental context with multiple, competing goals. In a differential human fear-conditioning paradigm, 57 participants performed joystick movements. In the control condition, one movement (conditioned stimulus; CS+) was followed by a painful electrocutaneous unconditioned stimulus (pain-US) in 50% of the trials, whereas another movement (nonreinforced conditioned stimulus; CS-) was not. In the experimental condition, a reward in the form of lottery tickets (reward-US) accompanied the presentation of the pain-US. Participants were classified into 3 groups, as a function of the goal, they reported to be the most important: (1) pain-avoidance, (2) reward-seeking, and (3) both goals being equally important. Results indicated that neither the reward co-occurring with pain nor the prioritized goal modulated pain-related fear. However, during subsequent choice trials, participants selected the painful movement more often when the reward was presented compared with the context in which the reward was absent. The latter effect was dependent on goal prioritization, with more frequent selections in the reward-seeking group, and the least selections in the pain-avoidance group. Taken together, these results underscore the importance of competing goals and goal prioritization in the attenuation of avoidance behavior.

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KW - MOVEMENT-RELATED PAIN

KW - Motivation

KW - PARADIGM

KW - Pain

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