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    Detecting the user mental states from the NIRS-measured hemodynamic signals

    Perrey, S. and Derosiere, Gerard and Dray, G. and Ward, Tomas E. (2013) Detecting the user mental states from the NIRS-measured hemodynamic signals. Annals of Physical and Rehabilitation Medicine, 56 (1). e379. ISSN 1877-065

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    There is a need to develop brain-computer interface (BCI) systems that are able to remain stable in varying psychophysiological conditions (such as during times of mental fatigue) that can disrupt user capability. Attention resources are finite and how a gradual decrease in attention across time – the so-called time-on-task (TOT) effect – can influence neural signals is yet to be identified. This present study investigated in fifteen male volunteers (i) the time course of cortico-spinal excitability through single-pulse transcranial magnetic stimulation; and (ii) the changes in activity of pre-motor, primary motor, prefrontal cortex and right parietal areas by means of near-infrared spectroscopy (NIRS), during a sustained attention reaction task (RT) of 30 min duration. Applicability of using NIRS-measured cortical activity in order to classify subject attentional state during the sustained attention task was further tested in a sample of 7 subjects.

    Item Type: Article
    Keywords: NIRS; Cognitive fatigue; BCI application; Cerebral signals;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 9281
    Identification Number:
    Depositing User: Dr Tomas Ward
    Date Deposited: 27 Feb 2018 16:00
    Journal or Publication Title: Annals of Physical and Rehabilitation Medicine
    Publisher: Elsevier
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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