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Delicate truth and falsehood in multi-brain communication: Near Infrared Spectroscopy studies| old_uid | 14631 |
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| title | Delicate truth and falsehood in multi-brain communication: Near Infrared Spectroscopy studies |
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| start_date | 2014/11/14 |
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| schedule | 11h-12h |
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| online | no |
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| summary | Cognitive studies in psychology have been affected through winds of brilliant innovation of measurement
technology. One of the most remarkable advances in cognitive neuroscience is brain imaging techniques.
The purpose of the present talk is to introduce the trend of brain imaging studies, especially focusing on
NIRS (Near infrared spectroscopy) studies. Despite continued vigorous exertion in neuroimaging studies,
little is known about the brain activation changes during the complex dynamic movements to be evaluated in
daily life. One of the reasons for the current lack of progress in elucidating these activating changes stems from the limitation of neuroimaging techniques such as fMRI and positron emission tomography (PET) that are unable to assess cortical function in ambulant participants. Unlike other neuroimaging techniques, NIRS
has few physical constraints on the participant and is tolerant to motion artifact, which permits serial assessments of tasks in relaxed and realistic environments. In particular, a new 2-channel NIRS unit, named
PocketNIRS, is highly portable due to its size (length: 100 mm; width: 61 mm; thickness: 18.5 mm) and weight (100 g including the batteries), and provides mobility for participants by transmitting the hemodynamic signals wirelessly via Bluetooth. More recently, the increasing number of flexible probe arrangements in multi-channel NIRS enables hyper-scanning. That is, two participants can interact while we
simultaneously measure the brain activities of both participants and examine their social interaction. We introduce our four NIRS studies according to a combination of scanning type (hyper-scanning or not) and
portable type (wireless or not). The designed contents in the present talk are the following: After demonstrating a brief overview of NIRS, (1) Speech and Gesture study (single brain with dual task), (2)
Cooperation and Competition (turn taking computer game), (3) Integration of emotion and cognition for artwork (like-understanding task), (4) Deception and lie detection (face to face lying task). |
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| responsibles | Pélissier |
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