6533b7d3fe1ef96bd1260897
RESEARCH PRODUCT
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subject
0301 basic medicineComputer scienceHuman brainAtomic and Molecular Physics and OpticsTime–frequency analysisTask (project management)03 medical and health sciencesMotor task030104 developmental biology0302 clinical medicinemedicine.anatomical_structureNeuroimagingDynamics (music)medicineFunctional near-infrared spectroscopyEvolution of the brainNeuroscience030217 neurology & neurosurgeryBiotechnologydescription
Functional near infrared spectroscopy (fNIRS) is a promising neuroimaging method for investigating networks of cortical regions over time. We propose a directed effective connectivity method (TPDC) allowing the capture of both time and frequency evolution of the brain’s networks using fNIRS data acquired from healthy subjects performing a continuous finger-tapping task. Using this method we show the directed connectivity patterns among cortical motor regions involved in the task and their significant variations in the strength of information flow exchanges. Intra and inter-hemispheric connections during the motor task with their temporal evolution are also provided. Characterisation of the fluctuations in brain connectivity opens up a new way to assess the organisation of the brain to adapt to changing task constraints, or under pathological conditions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-10-30 | Biomedical Optics Express |