Nelson Cailee M, O'Reilly Christian, Xia Mengya, Hudac Caitlin M
Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC 29208, USA.
Carolina Autism and Neurodevelopment Research Center, University of South Carolina, 1800 Gervais Street, Columbia, SC 29201, USA.
Behav Sci (Basel). 2024 Nov 26;14(12):1133. doi: 10.3390/bs14121133.
Nonverbal connection is an important aspect of everyday communication. For romantic partners, nonverbal connection is essential for establishing and maintaining feelings of closeness. EEG hyperscanning offers a unique opportunity to examine the link between nonverbal connection and neural synchrony among romantic partners. This current study used an EEG hyperscanning paradigm to collect frontal alpha asymmetry (FAA) signatures from 30 participants (15 romantic dyads) engaged in five different types of nonverbal connection that varied based on physical touch and visual contact. The results suggest that there was a lack of FAA while romantic partners were embracing and positive FAA (i.e., indicating approach) while they were holding hands, looking at each other, or doing both. Additionally, partners' FAA synchrony was greatest at a four second lag while they were holding hands and looking at each other. Finally, there was a significant association between partners' weekly negative feelings and FAA such that as they felt more negative their FAA became more positive. Taken together, this study further supports the idea that fleeting moments of interpersonal touch and gaze are important for the biological mechanisms that may underlie affiliative pair bonding in romantic relationships.
非言语交流是日常沟通的一个重要方面。对于恋爱伴侣而言，非言语交流对于建立和维持亲密感至关重要。脑电图超扫描技术为研究恋爱伴侣之间非言语交流与神经同步性之间的联系提供了一个独特的机会。本研究采用脑电图超扫描范式，从30名参与者（15对恋爱情侣）中收集额部阿尔法不对称性（FAA）特征，这些参与者进行了五种不同类型的非言语交流，这些交流根据身体接触和视觉接触的不同而有所变化。结果表明，恋爱伴侣拥抱时缺乏FAA，而牵手、对视或两者同时进行时则出现正向FAA（即表明趋近）。此外，伴侣之间的FAA同步性在牵手并对视时滞后四秒时最为显著。最后，伴侣的每周负面情绪与FAA之间存在显著关联，即他们感觉越消极，其FAA就越正向。综上所述，本研究进一步支持了这样一种观点，即人际接触和凝视的短暂时刻对于浪漫关系中亲密伴侣关系可能潜在的生物学机制很重要。
