MEG dual scanning: a procedure to study real-time auditory interaction between two persons
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© 2012 Frontiers Media SA. This document is protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission.
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2012
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Mcode
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Language
en
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7
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Frontiers in Human Neuroscience, Volume 6
Abstract
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.Description
Keywords
dual recording, magnetoencephalography, MEG, social interaction, auditory cortex, synchronization
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Citation
Baess, Pamela & Zhdanov, Andrey & Mandel, Anne & Parkkonen, Lauri & Hirvenkari, Lotta & Mäkelä, Jyrki P. & Jousmäki, Veikko & Hari, Riitta. 2012. MEG dual scanning: a procedure to study real-time auditory interaction between two persons. Frontiers in Human Neuroscience. Volume 6. 7. ISSN 1662-5161 (printed). DOI: 10.3389/fnhum.2012.00083.