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Related Experiment Video

Updated: Jul 15, 2025

Infant Auditory Processing and Event-related Brain Oscillations
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Developing customized NIRS-EEG for infant sleep research: methodological considerations.

Louisa K Gossé1, Paola Pinti1, Frank Wiesemann2

  • 1Birkbeck, University of London, Centre for Brain and Cognitive Development, London, United Kingdom.

Neurophotonics
|September 27, 2023
PubMed
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Investigating the effect of channel pruning on functional near-infrared spectroscopy data collected from children aged 5 to 24 months.

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Developing comfortable, wearable functional near-infrared spectroscopy (fNIRS)-electroencephalography (EEG) headgear for infants significantly improved sleep data quality and duration. This advancement enables better infant sleep research and caregiver interaction studies.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Biomedical Engineering

Background:

  • Simultaneous functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG) during infant sleep are understudied.
  • Existing methods lack comfort and optimal data quality for infant sleep research.

Purpose of the Study:

  • To develop and evaluate a comfortable, wearable fNIRS-EEG headgear for infants aged 5-9 months.
  • To assess the feasibility and data quality of combined fNIRS-EEG during natural infant sleep.

Main Methods:

  • Two phases of development: non-wearable (Phase 1) and wireless wearable (Phase 2) fNIRS-EEG headgear.
  • Utilized QT-NIRS to evaluate NIRS data quality metrics.
  • Recruited 49 infants (5-9 months) for system testing.
Keywords:
EEGdata qualityfunctional near-infrared spectroscopyinfantsleepwearable neuroimaging

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Main Results:

  • Wearable system increased infant nap rate from ~40% to 90% with 100% valid EEG data.
  • Infants slept significantly longer with the wearable system.
  • Data quality metrics showed comparable results between non-wearable and wearable systems.

Conclusions:

  • Demonstrated the usability of integrated fNIRS-EEG headgear for natural infant sleep.
  • The wearable headgear balances data quality, application scope, and experimental success.
  • This technology enhances infant comfort, sleep duration, and caregiver interaction research opportunities.