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The Effects of Monetary Motivation on the Relationship between Pain-Related Fear and Avoidance Behavior
Korean J Stress Res 2019;27:117-124
Published online March 31, 2019
© 2019 Korean Society of Stress Medicine.

Bun-Ok Kim1 , Kiseong Kim2 , Daeyong Shin3 , Sungkun Cho1

1Department of Psychology, Chungnam National University,
2Department of Bio and Brain Engineering, Korea Advanced Institute of Science & Technology (KAIST),
3BioBrain Inc., Daejeon, Korea
Correspondence to: Sungkun Cho Department of Psychology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea Tel: +82-42-821-6366 Fax: +82-42-823-9448 E-mail:
Received January 24, 2019; Revised March 6, 2019; Accepted March 6, 2019.
Articles published in stress are open-access, distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this study was to examine the effects of monetary motivation on the relationship between pain-related fear and avoidance behavior.


Eighty healthy volunteers were randomly assigned to one of four groups in accordance with task conditions of pain-related fear (high or low) and monetary motivation (high or low).


The autonomic nervous system was more active in the high pain-related fear group than in the low pain-related fear group as the participants watched a video and performed a task. Also, pain-related fear and monetary motivation had a significant interaction effect on avoidance behavior. High monetary motivation was associated with a shorter delay time during task performance in the high pain-related fear group. No significant difference was observed in the delay time in the low pain-related fear group.


This study provides empirical evidence supporting the modified fear-avoidance model and experimentally proves the activation of the goal shielding mechanism.

Keywords : Pain-related fear, Motivation, Avoidance behavior, Heart rate variability, Goal shielding

March 2020, 28 (1)

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