MEG dual scanning: a procedure to study real-time auditory interaction between two persons.

MEG dual scanning: a procedure to study real-time auditory interaction between two persons.
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DOI:
10.3389/fnhum.2012.00083
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发表时间:
2012
影响因子:
2.9
通讯作者:
Hari R
Hari R
中科院分区:
医学3区
文献类型:
--
作者:
Baess P;Zhdanov A;Mandel A;Parkkonen L;Hirvenkari L;Mäkelä JP;Jousmäki V;Hari R

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社会交往充斥着我们的日常生活,对我们的大脑功能提出了很高的要求。然而,研究社会互动的大脑基础的可能性在技术上仍然有限,即使是现代的社会认知大脑成像研究通常也只能监测一个参与者。我们在这里提出了一种方法来连接和同步两个遥远的神经磁力计。通过这种方法,两个不同站点的两个参与者可以通过稳定的实时音频连接以最小的延迟和抖动进行交互。两个实验室的脑磁图(MEG)和音频记录精确同步,以进行联合离线分析。该概念可以扩展到连接世界各地的多个MEG设备。作为脑磁图到脑磁图链接的概念的证明,我们报告了在相隔5公里的实验室对声音进行皮层诱发反应的时间敏感记录的结果。
Social interactions fill our everyday life and put strong demands on our brain function. However, the possibilities for studying the brain basis of social interaction are still technically limited, and even modern brain imaging studies of social cognition typically monitor just one participant at a time. We present here a method to connect and synchronize two faraway neuromagnetometers. With this method, two participants at two separate sites can interact with each other through a stable real-time audio connection with minimal delay and jitter. The magnetoencephalographic (MEG) and audio recordings of both laboratories are accurately synchronized for joint offline analysis. The concept can be extended to connecting multiple MEG devices around the world. As a proof of concept of the MEG-to-MEG link, we report the results of time-sensitive recordings of cortical evoked responses to sounds delivered at laboratories separated by 5 km.
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