This article systematically reviews studies investigating the effect of three operationalizations of complexity in emotion experience (i.e., differentiation, covariation, and variability) on situational behavioral adaptation (i.e., physiological, cognitive, and overt action responses), and quantifies the results with meta-analyses. Twenty-seven studies of emotion complexity were identified and divided into four categories: (a) trait and (b) state studies within clinical samples, and (c) trait and (d) state studies within nonclinical samples. Most studies investigated trait emotion differentiation, revealing negligible to small effects (r range: .06 to .15). Only 4 studies in total assessed indicators of state emotion complexity. The theoretical assumptions behind the indicators of emotion complexity as well as the conceptualization of behavioral adaptiveness are critically discussed, and a number of future avenues for this type of research are proposed.

中文翻译：

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情绪体验的复杂性与行为适应之间关联性的系统评价和Meta分析

本文系统地回顾了研究，研究了情感体验中的三种复杂性操作（即，分化，协变和变异性）对情景行为适应性（即，生理，认知和明显的动作反应）的影响，并通过元数据量化了结果分析。鉴定了27项关于情绪复杂性的研究，并将其分为四类：（a）特征和（b）临床样本内的状态研究，以及（c）特征和（d）非临床样本内的状态研究。大多数研究调查了特质情绪差异，发现对微弱影响可忽略不计（r范围：.06至.15）。总共只有4项研究评估了状态情绪复杂性的指标。