第十七期 fNIRS Journal Club 通知 2021/03/27,10am

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卢春明教授

北京师范大学的卢春明教授将为大家讲解他们最近发布的一篇用超扫描研究恋爱关系的文章。热烈欢迎大家参与讨论。

时间: 北京时间2021年3月27日周六上午10点
地点: https://zoom.com
房间号: 870 6817 2529
密码: 433527

Long, Zheng, Zhao, Zhou, Zhai, Lu (2020) Interpersonal Neural Synchronization during Interpersonal Touch Underlies Affiliative Pair Bonding between Romantic Couples. Cerebral cortex. 点击查看

该文献的PUBMED信息
PMID: 33145593
DOI:  10.1093/cercor/bhaa316

Abstract: Interpersonal touch plays a key role in creating and maintaining affiliative pair bonds in romantic love. However, the neurocognitive mechanism of interpersonal touch in affiliative pair bonding remains unclear. Here, we hypothesized that interpersonal neural synchronization (INS) during interpersonal touch underlies affiliative pair bonding between romantic couples. To test this hypothesis, INS between heterosexual romantic couples and between opposite-sex friends was measured using functional near-infrared spectroscopy-based hyperscanning, while the pairs of participants touched or vocally communicated with each other. The results showed significantly greater INS between the mentalizing and sensorimotor neural systems of two members of a pair during interpersonal touch than during vocal communication between romantic couples but not between friends. Moreover, touch-induced INS was significantly correlated with the self-reported strength of romantic love. Finally, the results also showed that men’s empathy positively modulated the association between touch-induced INS increase and the strength of romantic love. These findings support the idea that INS during interpersonal touch underlies affiliative pair bonding between romantic couples and suggest that empathy plays a modulatory role in the neurocognitive mechanism of interpersonal touch in affiliative pair bonding. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

人际交往在建立和维持恋爱关系中的亲密关系中起着关键作用。然而,人与人之间的联系在联结配对中的神经认知机制仍然不清楚。在这里,我们假设在人际交往过程中的人际神经同步(INS)是浪漫情侣之间的亲和关系的基础。为了检验这一假设,使用基于功能的近红外光谱的超扫描技术测量了异性恋浪漫情侣之间以及异性朋友之间的INS,而成对的参与者彼此接触或语音交流。结果表明,在人与人之间的接触中,一对两个成员的心理和感觉运动神经系统之间的INS比在浪漫情侣之间(而不是朋友之间)的语音交流过程中更大。此外,触摸诱导的INS与自我报告的浪漫爱情强度显着相关。最后,结果还表明,男人的同理心积极调节了触摸诱导的INS增加与浪漫爱情强度之间的关联。这些发现支持这样的想法,即在人际交往过程中,INS是浪漫情侣之间的亲属配对关系的基础,并表明同理心在亲属配对中的人际交往的神经认知机制中起调节作用。

采用基于频率簇(Cluster)的置换检验(Permutation)方法选取感兴趣频段

作者:北京师范大学 龙宇航,longyuhangwork@163.com代码来源(见本页底部):周思远 在使用wtc计算脑间神经同步后,我们需要在多个频率段、多个通道组合上对神经同步值进行统计检验,因此当进行频段选择时,面临多重比较的问题。为了解决多重比较的问题,可以采取基于参数或非参数检验的多重比较矫正的方法。由于基于非参数检验的多重比较矫正对数据的分布形态没有严格要求,因此具有更广泛的应用场景 (Maris and Oostenveld, 2007)。本文即介绍基于随机置换的非参数检验的方法 (Zheng et al., 2020; Long et al., 2021)。 在寻找感兴趣的效应时,我们采取了基于频率簇(Cluster)的方法,即在频率方向寻找连续显著的Cluster,该方法比基于最强效应点的方法具有更为优秀的抗噪音能力。值得注意的是,我们并没有沿着通道的方向去寻找连续显著的通道簇,这是因为沿着通道方向寻找Cluster容易受到生理噪音的影响。 下面进入具体的实操部分。假设本例招募了22对组1被试及22对组2被试,每对被试分别进行3种条件的任务,因此本例是2(组别,被试间因素)*3(条件,被试内因素)的实验设计。本例对神经同步值进行2*3的混合方差分析,并关注交互作用。 具体来讲,进行置换检验需要进行以下几个步骤:1. 重采样;2. 对随机样本进行计算及统计;3. 计算真实样本的统计量;4. 真实样本与随机样本的对比。下面依次进行介绍。 1. 重采样...
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第二十期 fNIRS Journal Club 通知 2021/06/26,10:00am

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Calculate phase difference between two general signals (e.g. HbO…

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