ABSTRACT

How one behaves after interacting with a friend may not be the same as before the interaction. The present study investigated which spontaneous coordination patterns formed between 2 persons and whether a remnant of the interaction remained (“social memory”). Pairs of people sat face-to-face and continuously flexed index fingers while vision between partners was manipulated to allow or prevent information exchange. Trials consisted of 3 successive 20-s intervals: without vision, with vision, and again without vision. Steady, transient, or absent phase coupling was observed during vision. In support of social memory, participants tended to remain near each other's movement frequency after the interaction ended. Furthermore, the greater the stability of interpersonal coordination, the more similar partners' postinteractional frequencies became. Proposing that social memory resulted from prior frequency adaptation, a model based on Haken–Kelso–Bunz (HKB) oscillators reproduced the experimental findings, even for patterns observed on individual trials. Parametric manipulations revealed multiple routes to social memory through the interplay of adaptation and other model parameters. The experimental results, model, and interpretation motivate potential future research and therapeutic applications.

摘要

与朋友互动后的行为可能与互动之前不同。本研究调查了两个人之间形成了哪些自发的协调模式，以及是否剩余了互动（“社会记忆”）。成对的人面对面坐着并不断弯曲食指，同时操纵伴侣之间的视线以允许或阻止信息交换。试验包括3个连续的20秒间隔：无视，有视和无视。在视觉过程中观察到稳定，短暂或无相位耦合。为了支持社交记忆，互动结束后，参与者倾向于保持彼此的运动频率接近。此外，人际协调的稳定性越强，类似伙伴的 交互后频率变为。提出社交记忆是由先前的频率适应引起的，基于Haken–Kelso–Bunz（HKB）振荡器的模型可重现实验结果，即使是针对个别试验观察到的模式也是如此。参数操纵通过适应和其他模型参数的相互作用揭示了通往社交记忆的多种途径。实验结果，模型和解释激发了潜在的未来研究和治疗应用。