Journal
FRONTIERS IN HUMAN NEUROSCIENCE
Volume 6, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fnhum.2012.00083
Keywords
dual recording; magnetoencephalography; MEG; social interaction; auditory cortex; synchronization
Categories
Funding
- European Research Council [232946]
- Academy of Finland (National Centers of Excellence) [129678, 218072, 131483, 135198]
- Aalto University
- Finnish Graduate School of Neuroscience
- Jenny and Antti Wihuri Foundation
- Elekta Oy
- Academy of Finland (AKA) [135198, 218072, 218072, 135198, 129678, 129678] Funding Source: Academy of Finland (AKA)
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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 5km.
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