第十四期 fNIRS Journal Club 通知 2020/11/29,11am

1 min read

窦皓然

北京时间2020年11月29日周日上午11点, 四川师范大学和芬兰University of Jyväskylä联合培养博士生窦皓然将为大家讲解他们最近发布在NeuroImage上关于社会排斥的文章。欢迎大家参加并参与讨论。

时间: 北京时间2020年11月29日周日上午11点
地点: https://zoom.com
房间号: 838 4895 7455
密码: 802777

Dou, Lei, Cheng, Wang, Leppänen (2020) Social exclusion influences conditioned fear acquisition and generalization: A mediating effect from the medial prefrontal cortex NeuroImage 218, 116735

Abstract
Fear acquisition and generalization play key roles in promoting the survival of mammals and contribute to anxiety disorders. While previous research has provided much evidence for the repercussions of social exclusion on mental health, how social exclusion affects fear acquisition and generalization has received scant attention. In our study, participants were divided into two groups according to two Cyberball paradigm conditions (exclusion/inclusion). Both groups underwent a Pavlovian conditioning paradigm, functional near-infrared spectroscopy (fNIRS), and skin conductance response (SCR) assessments. We aimed to determine the effects of social exclusion on fear acquisition and generalization and whether modulation of the medial prefrontal cortex (mPFC) mediates this relationship. Our results showed that socially excluded participants featured significantly higher and lower shock risk scores to safety stimuli (conditioned stimulus, CS-) and threatening stimuli (CS+), respectively, than did socially included subjects during fear acquisition. The exclusion group had increased skin conductance responses (SCRs) to CS and exhibited heightened shock risk and increased SCRs to generalized stimuli compared with the inclusion group. The fNIRS results demonstrated that the CS ​+ ​evoked larger oxy-Hb changes in the mPFC in the inclusion group than in the exclusion group during fear acquisition. Furthermore, the oxy-Hb of left mPFC of CS ​+ ​mediated the effect on the association between social exclusion and perceived risk of CS+ in the fear acquisition. Our results indicate that social exclusion impairs fear acquisition and generalization via the mediation of the mPFC and that social exclusion increases susceptibility to anxiety disorders through bias processing of fear discrimination in fear acquisition and generalization. By studying the role of social relationship in fear acquisition and generalization, our research provides new insights into the pathological mechanisms of anxiety disorder. Copyright © 2020. Published by Elsevier Inc.

第十六期 fNIRS Journal Club 通知 2021/01/23,1pm

瑞典 Karolinska Institutet的潘亚峰博士将为大家讲解他们最近发布的一篇用超扫描研究教师学生关系的文章。热烈欢迎大家参与讨论。潘博士为了这次报告,需要一大早就起床。因此本次报告的时间比过去要稍晚一点。 时间: 北京时间2021年1月23日周六下午1点地点: https://zoom.com房间号: 815 4986 9861密码: 796475 Pan, Guyon, Borragán, Hu, Peigneux (2020) Interpersonal brain synchronization with instructor compensates for learner’s...
Xu Cui
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第十五期 fNIRS Journal Club 视频

北京时间2020年12月27日周日上午10点, 香港中文大学二年级博士生胡玥讲了一篇用神经网络去除运动伪迹的文章。视频如下: Youtube: https://youtu.be/mZkGzm1R7ak Youku: https://v.youku.com/v_show/id_XNTAyODUyMTEyOA==.html
Xu Cui
4 sec read

第十五期 fNIRS Journal Club 通知 2020/12/27,10am

香港中文大学二年级博士生胡玥为大家介绍一篇方法学文献,即基于人工神经网络重構的多通道fNIRS信号运动伪影校正。该方法不仅对心理学,还对运动科学以及康复医学等领域的研究具有重要的参考价值,热烈欢迎大家参与讨论。 时间: 北京时间2020年12月27日周日上午10点地点: https://zoom.com房间号: 859 4100 6556 密码: 467563 Lee, G., Jin, S. H., & An, J. (2018). Motion artifact correction of multi-measured functional...
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51 sec read

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