1 华南师范大学 a.心理学院
2 华南师范大学 b.华南师范大学华南先进光电子研究院, 广东 广州 510631
多人同步交互式记录是认知神经科学的一种新的研究范式, 它可以揭示两个或多个个体的大脑间在社交情境下神经活动的耦合。这一目标仅靠单个大脑活动的记录与测量是无法实现的。功能性近红外光谱成像在进行多人同步交互记录研究中有独特的优势。该方面的研究已经涵盖了社会认知神经科学的多个领域。本研究使用近红外光谱成像对社交情境下自我表露的双人大脑前额皮层的活动进行交互式测量, 并使用小波相关来分析双人大脑互动时的神经同步性。研究结果表明在进行社交对话时, 被试对的大脑间左侧额中回、右侧眶额皮层和右侧额下回下部的活动同步性显著增强。共情能力与社交情境下脑间同步性的强度呈正相关, 这种关系主要体现在右侧额下回。本研究支持了采用近红外光谱成像技术研究多人同步交互记录大脑间神经耦合的可行性和有效性。
医用光学 多人同步交互记录 近红外光谱成像 小波相干 共情 medical optics hyperscanning functional near-infrared spectroscopy wavelete coherence empathy
Author Affiliations
Abstract
1 Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
2 School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
We present a tunable resonator consisting of a colossal magnetoresistant cross in which a smaller gold cross is embedded. Simulations show the resonance frequencies of the resonator move into the infrared regime when there is a change in the intensity of the external magnetic field applied to the resonator. The source of the tunability is the variance in the colossal magnetoresistance in the resonator when the intensity of the magnetic field changes, which accordingly leads to a shift in the resonance frequency. Such a method offers a new way to achieve tunability, which has potential applications in controllable photoelectric elements.
160.3918 Metamaterials 260.5740 Resonance 050.1755 Computational electromagnetic methods 260.2110 Electromagnetic optics Chinese Optics Letters
2015, 13(5): 051601
