OBJECTIVE Recent conceptual frameworks propose anhedonia reflects abnormalities in the temporal dynamics of positive emotion in schizophrenia, characterized by intact consummatory and impaired anticipatory pleasure. A comprehensive meta-analysis can directly test this theory using self-report data. METHOD A meta-analysis was performed on studies reporting Temporal Experience of Pleasure Scale (TEPS) data from healthy controls and schizophrenia or schizotypy groups. The TEPS was examined as it contains subscales to measure both consummatory and anticipatory pleasure separately. Statistical heterogeneity and study bias were examined. Meta-regressions evaluated moderators. RESULTS 53 studies were retrieved (7,797 participants). Results revealed small effect sizes for comparisons of combined schizophrenia/schizotypy and control groups for both consummatory and anticipatory pleasure. Within-group comparisons of pleasure conditions were nonsignificant. The percentage of male schizophrenia/schizotypy participants significantly moderated anticipatory and consummatory pleasure for the combined sample and schizotypy alone; male participants were found to report reduced pleasure. There was only minor evidence of bias; sensitivity analysis confirmed result robustness. Exploratory outlier removal for schizophrenia within-group pleasure comparisons revealed a statistically significant difference between reported anticipatory and consummatory pleasure, with consummatory pleasure reduced relative to anticipatory (i.e., in the opposite direction of the majority of experimental research findings). CONCLUSIONS These findings provided only modest support for the temporal dynamics of positive emotion conceptualization because they revealed no evidence for: 1) specific anticipatory pleasure deficits in schizophrenia-spectrum participants compared to controls; 2) significant reductions in anticipatory pleasure relative to consummatory pleasure in schizophrenia-spectrum participants.

中文翻译：

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对精神分裂症频谱中自我报告的预期和完善的愉悦进行的荟萃分析。

目的最近的概念框架提出，快感缺乏症反映了精神分裂症患者积极情绪的时间动态异常，其特征是完整的完善和预期的愉悦感受损。全面的荟萃分析可以使用自我报告数据直接检验该理论。方法对报告健康对照和精神分裂症或精神分裂症患者的愉悦时间量表（TEPS）数据的研究进行荟萃分析。对TEPS进行了检查，因为它包含量表，分别测量了消费愉悦感和预期愉悦感。统计异质性和研究偏见进行了审查。元回归评估主持人。结果共检索到53项研究（7,797名参与者）。结果显示，对于精神分裂症/精神分裂症和对照组在改善和预期愉悦方面的比较，效果较小。组内对娱乐条件的比较不显着。男性精神分裂症/精神分裂症参与者的百分比显着降低了单独使用样本和精神分裂症的预期和完善的愉悦感。发现男性参与者报告愉悦感降低。只有很少的证据表明存在偏见。灵敏度分析证实了结果的鲁棒性。探索性离群性精神分裂症组内愉悦度比较的消除显示，报告的预期愉悦性和消费愉悦性之间存在统计学上的显着差异，相对于预期愉悦性而言，愉悦性降低了（即，与大多数实验研究结果相反）。结论这些发现仅为积极情绪概念化的时间动态提供了适度的支持，因为它们没有揭示以下方面的证据：1）与对照相比，精神分裂症患者的预期预期愉悦性缺陷；2）精神分裂症患者的预期愉悦感相对于享受愉悦感明显降低。