Department of Medical Psychology|Neuropsychology and Gender Studies & Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, Germany.
Italian Institute of Technology (IIT), Rome, Italy.
Acta Psychol (Amst). 2021 Jul;218:103348. doi: 10.1016/j.actpsy.2021.103348. Epub 2021 May 28.
The ability to distinguish between an individual's own actions and those of another person is a requirement for successful joint action, particularly in domains such as group music making where precise interpersonal coordination ensures perceptual overlap in the effects of co-performers' actions. We tested the hypothesis that such coordination benefits from simultaneous integration and segregation of information about 'self' and 'other' in an experiment using a musical joint action paradigm. Sixteen pairs of individuals with little or no musical training performed a dyadic synchronization task on a pair of electronic music boxes. The relationship between pitches produced by paired participants (same vs. different) and the relationship between movement frequencies required to trigger synchronous tones (congruent vs. incongruent) were varied in a repeated measures design. The results indicate that interpersonal coordination was most accurate when sounds were different in pitch but movement frequency was congruent. Under other conditions, participants often drifted apart, resulting in poor coordination, especially with same sounds and incongruent movements across co-performers. These findings suggest that interpersonal coordination was facilitated when simultaneous self-other integration and segregation occurred across sensory modalities in an asymmetrical manner where pitch relations favoured segregation via auditory streaming while movement congruence favoured integration via visuo-motor coupling. Such self-other representational balance may enable co-performers to maintain autonomous control while attending, anticipating, and adapting to each other's timing when joint action requires precise temporal coordination.
区分个体自身行为和他人行为的能力是成功进行联合行动的要求，特别是在集体音乐演奏等领域，精确的人际协调确保了共同演奏者行为效果的感知重叠。我们通过使用音乐联合行动范式的实验来检验这样一种假设，即这种协调得益于关于“自我”和“他人”的信息的同时整合和分离。16 对接受过很少或没有音乐训练的个体在一对电子音乐盒上执行了一个二元同步任务。在重复测量设计中，参与者产生的音高（相同与不同）之间的关系和触发同步音调所需的运动频率（一致与不一致）之间的关系发生了变化。结果表明，当音高不同但运动频率一致时，人际协调最准确。在其他情况下，参与者往往会分道扬镳，导致协调不佳，尤其是当共同演奏者的声音相同时，运动频率不一致。这些发现表明，当自我和他人的信息在感觉模式上同时进行不对称的整合和分离时，人际协调会得到促进，其中音高关系通过听觉流来促进分离，而运动一致性则通过视动耦合来促进整合。这种自我-他人的代表性平衡可能使共同演奏者在需要精确时间协调的联合行动中，保持自主控制，同时关注、预测和适应彼此的节奏。
