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January 27, 2023Open Access

Neural substrates for hand and shoulder movement in healthy adults: A functional near infrared spectroscopy study.

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Key result

Right hand movements produce more lateral contralateral sensorimotor activation while shoulder movements produce medial activation.

  • n=20

Why the study?

Characterizing cortical activation patterns during movements in healthy adults may help clarify brain function after injury, such as in stroke.

Can functional near-infrared spectroscopy (fNIRS) distinguish cortical activation patterns between hand and shoulder movements in healthy adults?

Population

20 healthy, right-handed participants

Comparison

Right-hand opening-closing vs right shoulder abduction-adduction motor tasks

Design

Block paradigm functional near-infrared spectroscopy study

Authors

JBJulien BonnalCÖCanan ÖzsancakFMFanny Monnet

Discussion

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Overview

fNIRS differentiates proximal-distal upper limb motor maps; leaves open its role in monitoring post-injury recovery.

Study Design

Type

Observational (n=20)

Randomization

Randomized task order

Multicenter

No

Structured PICO

Can functional near-infrared spectroscopy (fNIRS) distinguish cortical activation patterns between hand and shoulder movements in healthy adults?

P
Population
20 healthy, right-handed individuals (6 males, 14 females; mean age 30.9 years) with no history of neurological, physical, or psychiatric illness.
I
Intervention
Two 10-second motor tasks (right-hand opening-closing and right shoulder abduction-adduction) performed at a rate of 0.5 Hz, monitored by 24-channel functional near-infrared spectroscopy (fNIRS).
C
Comparator
Rest periods (20 to 30 seconds) between motor trials.
O
Outcome
Changes in oxyhemoglobin (HbO2) and deoxyhemoglobin (HbR) concentrations between rest and task for each condition.surrogate

fNIRS can successfully distinguish distinct cortical activation patterns between proximal (shoulder) and distal (hand) upper limb movements, highlighting its potential utility for monitoring motor recovery after brain injury.

Limitations

  • Short channels were not available for the preprocessing of fNIRS data
  • Only right-handed participants were recruited
  • Simple motor tasks were performed only on the dominant side, limiting generalizability
  • Lack of short channels for preprocessing of fNIRS data
  • Recruited only right-handed participants
  • Simple motor tasks were performed only on the dominant side

Cite This Study

Bonnal et al. (2023) conducted an observational in Healthy adults (n=20). Right hand movement task (opening-closing) vs. Right shoulder movement task (abduction-adduction) was evaluated on Changes in cortical oxyhemoglobin (HbO2) and deoxyhemoglobin (HbR) concentrations. Functional near-infrared spectroscopy showed that right hand movements produced more lateral contralateral sensorimotor activation, while shoulder movements produced more medial activation.

synapsesocial.com/papers/6a18bb04cac83a2bcecfab19https://doi.org/10.21203/rs.3.rs-2499484/v1
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Assessment of Brain Cortical Activation in Passive Movement During Wrist Task Using Functional Near Infrared Spectroscopy (fNIRS)2019 · 6 citations
  2. 2Optical Imaging of Brain Motor Cortex Activation During Wrist Movement Using Functional Near-Infrared Spectroscopy (fNIRS)2019 · 5 citations
  3. 3An Experiment Using Functional Near-Infrared Spectroscopy and Robot-Assisted Multi-Joint Pointing Movements of the Lower Limb2024
  4. 4Non-invasive functional mapping of the human motor cortex using near-infrared spectroscopy1996 · 119 citations
  5. 5Use of cortical hemodynamic responses in digital therapeutics for upper limb rehabilitation in patients with stroke2024