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Mental stress assessment using simultaneous measurement of EEG and fNIRS

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Check out this Knowledge Base article from StressTherapy Solutions: Mental stress assessment using simultaneous measurement of EEG and fNIRS.

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Study at a glance

Area
Anxiety & Stress
Study type
Controlled study
Authors
Al-Shargie F, Kiguchi M, Badruddin N, Dass SC, Hani AFM, Tang TB
Journal
Biomedical Optics Express
Year
2016
Participants
22
Population
Adults
Protocol
Simultaneous EEG and fNIRS
Equipment
BrainMaster Discovery

Key findings

  • EEG + fNIRS fusion beat EEG alone by 3.4% and fNIRS alone by 11% in accuracy
  • Frontal alpha and oxygenated-haemoglobin changes were the key features

A method study that combined EEG and functional near-infrared spectroscopy (fNIRS) over the prefrontal cortex to detect mental stress, induced by timed mental arithmetic with negative feedback and confirmed by a saliva test. Fusing the two signals classified stress more accurately than either one alone.