Imaging Real-Time Tactile Interaction With Two-Person Dual-Coil fMRI
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Abstract
Studies of brain mechanisms supporting social interaction are demanding because real interaction only occurs when persons are in contact. Instead, most brain imaging studies scan subjects individually. Here we present a proof-of-concept demonstration of two-person blood oxygenation dependent (BOLD) imaging of brain activity from two individuals interacting inside the bore of a single MRI scanner. We developed a custom 16-channel (8 + 8 channels) two-helmet coil with two separate receiver-coil pairs providing whole-brain coverage, while bringing participants into a shared physical space and realistic face-to-face contact. Ten subject pairs were scanned with the setup. During the experiment, subjects took turns in tapping each other's lip versus observing and feeling the taps timed by auditory instructions. Networks of sensorimotor brain areas were engaged alternatingly in the subjects during executing motor actions as well as observing and feeling them; these responses were clearly distinguishable from the auditory responses occurring similarly in both participants. Even though the signal-to-noise ratio of our coil system was compromised compared with standard 32-channel head coils, our results show that the two-person fMRI scanning is feasible for studying the brain basis of social interaction.
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Scanning two people simultaneously with MRI results in an environment with limited possibilities for experimental design.
“this results in an environment which offers limited possibilities for experimental design.”
From Naturalistic Hyperscanning with Wearable Magnetoencephalography (2023) · cites this paper as [4]
MRI can be adapted to scan two people simultaneously.
“Whilst MRI can be adapted to scan two people simultaneously [4,5]”
From Naturalistic Hyperscanning with Wearable Magnetoencephalography (2023) · cites this paper as [4]
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References 63 · Cited by 19
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- Authors
- Renvall, V., Kauramäki, J., Malinen, S., Hari, R., & Nummenmaa, L.
- Affiliations
- Aalto University (FI)
- University of Turku (FI)
- Corresponding author
- Nummenmaa, Lauri
- Venue
- Frontiers in Psychiatry
- Publisher
- Frontiers Media SA
- Published
- 2020-04-28
- Volume
- 11
- Pages
- 279-279
- ISSN
- 1664-0640 (ISSN-L)
- PMC
- PMC7198901
- OpenAlex
- W3012788753
- Cited by
- 19
- References
- 63
- Citations by year
- 2025: 2 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 4 · 2020: 2
- FWCI
- 1.83
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Frontiers in Psychiatry (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Aaltodoc (Aalto University) (submittedVersion, cc-by)
- UTUPub (University of Turku) (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Academy of Finland (265917, #313000, #218072)
- Aalto-Yliopisto (265917)
- Suomen Kulttuurirahasto
- Svenska Kulturfonden
- Instrumentariumin Tiedesäätiö
- FP7 Ideas: European Research Council (232946)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
- Social Sciences › Psychology › Social Psychology › Action Observation and Synchronization
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Keywords
- social interaction, touch interaction, BOLD imaging, sensorimotor network, motor action, shared physical space, signal-to-noise ratio
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