reward processing under chronic pain from the perspective of “liking” and “wanting”: a narrative review
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ID: 170765
2019
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Abstract
The therapeutic goals of patients with chronic pain are not only to relieve pain but also to improve the quality of life. Chronic pain negatively affects various aspects of daily life, such as by decreasing the motivation to work and reward sensitivity, which may lead to difficulties in daily life or even unemployment. Human and animal studies have shown that chronic pain damages reward processing; the exploration of associated internal mechanisms may aid the development of treatments to repair this damage. Incentive salience theory, used widely to describe reward processing, divides this processing into “liking” (reward-induced hedonic sensory impact) and “wanting” (reward-induced motivation) components. It has been employed to explain pathological changes in reward processing induced by psychiatric disorders. In this review, we summarize the findings of studies of reward processing under chronic pain and examine the effects of chronic pain on “liking” and “wanting.” Evidence indicates that chronic pain compromises the “wanting” component of reward processing; we also discuss the neural mechanisms that may mediate this effect. We hope that this review aids the development of therapies to improve the quality of life of patients with chronic pain.
| Reference Key |
liu2019painreward
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|---|---|
| Authors | ;Xinhe Liu;Ning Wang;Lijia Gu;Jianyou Guo;Jinyan Wang;Fei Luo |
| Journal | chemistryselect |
| Year | 2019 |
| DOI |
10.1155/2019/6760121
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| URL | |
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