Protocol for Simultaneous EEG and fNIRS Measurement in Characterizing Brain State.

Area of Science:

• Neuroscience and Biomedical Engineering
• Physiological Measurement and Monitoring

Background:

• Multi-modal signal measurement is crucial for health monitoring and disease recognition.
• Concurrent electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) offer portable assessment of cortical electrical activity and hemodynamic changes.
• Existing methods like EEG-fMRI are less portable, highlighting the need for standardized EEG-fNIRS protocols.

Purpose of the Study:

• To propose a standard operating procedure for joint EEG-fNIRS measurement.
• To detail electrode placement, hardware, software, and signal processing steps.
• To provide solutions for potential challenges in EEG-fNIRS data acquisition and analysis.

Main Methods:

• Development of a standardized protocol for concurrent EEG-fNIRS data collection.
• Implementation of artifact removal techniques for signal processing.
• Extraction of EEG-fNIRS phenotypes using software and custom algorithms.
• Establishment of data storage guidelines.

Main Results:

• A comprehensive protocol for joint EEG-fNIRS measurement is established.
• Methods for artifact removal and phenotype extraction are detailed.
• Potential issues and their solutions are addressed within the protocol.

Conclusions:

• The proposed protocol is expected to standardize EEG-fNIRS measurements.
• This standardization will facilitate broader applications and a deeper understanding of brain mechanisms.
• The protocol aims to improve the reliability and comparability of multi-modal brain activity research.