The Valuation of Social Rewards in Schizophrenia
The Valuation of Social Rewards in Schizophrenia
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DOI：
10.1037/abn0000366
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发表时间：
2018-08-01
影响因子：
4.6
通讯作者：
Gold, James M.
中科院分区：
文献类型：
--
作者：
Catalano, Lauren T.;Heerey, Erin A.;Gold, James M.
精神分裂症患者的社会功能障碍通常被认为反映了社会认知能力差。在这里，我们研究的反应，社会奖励，社会功能的一个方面，是没有突出的文献。本实验的目的是探索精神分裂症患者是否（a）低估社会奖励，以及（B）社会奖励的低估是否与精神分裂症患者的动机和快乐缺陷以及社会功能下降有关。精神分裂症患者和健康的参与者完成了一个游戏（海岸和Heerey，2011），以探索不同类型的社交（礼貌和真诚的微笑）和非社交（金钱）奖励的偏好。根据游戏过程中的选择行为，量化了每个参与者对奖励类型的偏好。参与者还完成了一项微笑辨别任务，以评估他们辨别这些类型微笑的能力。分析显示，精神分裂症患者（N = 41）将真诚的微笑视为比健康参与者（N = 29）更少的奖励，尽管他们对金钱奖励表现出类似的偏好。社会奖励的低估与区分微笑的能力无关。目前的研究结果提供了初步证据，表明精神分裂症患者的社会奖励价值降低，这可能对面对面的社会互动行为产生影响。
Social impairment in schizophrenia is often thought to reflect poor social cognition. Here we examine responses to social rewards, an aspect of social functioning that is not featured prominently in the literature. The goal of this experiment was to explore whether people with schizophrenia (a) undervalue social rewards, and (b) whether the undervaluation of social rewards was related to motivation and pleasure deficits in schizophrenia and decreased social functioning. People with schizophrenia and healthy participants completed a game (Shore & Heerey, 2011) to explore preferences for different types of social (polite and genuine smiles) and nonsocial (monetary) rewards from computerized opponents. Preferences for reward types were quantified for each participant based on choice behavior during the game. Participants also completed a smile discrimination task to assess their ability to discriminate these types of smiles. Analyses revealed that people with schizophrenia (N = 41) treated genuine smiles as significantly less rewarding than did healthy participants (N = 29), despite showing a similar preference for monetary rewards. The undervaluation of social rewards was not related to the ability to discriminate between the smiles. The current findings provide preliminary evidence of reduced social reward valuation among individuals with schizophrenia, which may have implications for behavior in face-to-face social interactions.