The social interactions of task groups were investigated for their influences on member moods. Initially, participants' received an induction of positive, negative, or neutral moods via listening to music that continued throughout the experimental session. Moods were measured after the induction. Students then made decisions on four choice dilemmas alone or as members of a four-person group. Subsequently, positive and negative moods were again measured. Positive moods of participants who worked with other group members on the task were sustained, but diminished for those working alone. Negative moods of participants working in groups diminished over time, but were sustained for those working individually. These results were interpreted in the context of motivational systems theory of group involvement (Park & Hinsz, 2006). Additionally, although there was a tendency for member moods to homogenize over assessments, this did not reach significance. Results document the affective benefits that often accompany task group interaction suggesting that group interaction has features of positive mood induction. This report highlights the need to consider social influences on affect in task settings so that group dynamics, processes, and behaviors can be better understood.

中文翻译：

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团体互动维持积极情绪并减少消极情绪。

研究了任务组的社交互动对成员情绪的影响。最初，参与者通过在整个实验过程中持续听音乐来获得积极、消极或中性情绪的诱导。诱导后测量情绪。然后，学生单独或作为四人小组的成员就四种选择困境做出决定。随后，再次测量积极和消极情绪。与其他小组成员一起完成任务的参与者的积极情绪持续存在，但单独工作的参与者的积极情绪会减弱。集体工作的参与者的负面情绪随着时间的推移而减弱，但对于单独工作的参与者来说却持续存在。这些结果在群体参与的动机系统理论的背景下进行了解释 (Park & Hinsz, 2006)。此外，尽管成员情绪在评估上趋于同质化，但这并没有达到显着性。结果记录了经常伴随任务组交互的情感益处，表明组交互具有积极情绪诱导的特征。本报告强调需要在任务设置中考虑社会影响，以便更好地理解群体动态、过程和行为。