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Related Experiment Video

Updated: Nov 5, 2025

Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials

Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials

Published on: April 27, 2021

Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials.

Daryl H Fong¹, Adrian J Cohen², Dylan E Mahony³

¹School of Aerospace, Mechanical and Mechatronic Engineering, Faculty of Engineering and Information Technologies, University of Sydney.

Journal of Visualized Experiments : Jove

|May 17, 2021

Summary

This summary is machine-generated.

A new portable system for measuring steady-state visual-evoked potentials (SSVEP) shows promise as a reliable biomarker for concussion in athletes. This electroencephalogram (EEG) test can objectively assess concussion and recovery.

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Last Updated: Nov 5, 2025

Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials

Objectively Assessing Sports Concussion Utilizing Visual Evoked Potentials

Published on: April 27, 2021

A Neuroscientific Approach to the Examination of Concussions in Student-Athletes

A Neuroscientific Approach to the Examination of Concussions in Student-Athletes

Published on: December 8, 2014

Vision Training Methods for Sports Concussion Mitigation and Management

Vision Training Methods for Sports Concussion Mitigation and Management

Published on: May 5, 2015

Area of Science:

Neuroscience
Sports Medicine
Biomarker Development

Background:

Concussion assessment in athletes often relies on subjective measures.
Objective electrophysiological biomarkers are needed for accurate concussion diagnosis and management.
Steady-state visual-evoked potentials (SSVEP) offer a quantifiable EEG measure.

Purpose of the Study:

To develop and validate a portable system for measuring SSVEP.
To determine if SSVEP can serve as a reliable electrophysiological biomarker for concussion in rugby players.
To assess the test-retest reliability of the portable SSVEP system.

Main Methods:

A portable SSVEP system (smartphone in VR-frame with EEG headset) was used on 65 rugby players.
Baseline SSVEP assessments were conducted before the season.
Players were re-tested during the season post-injury or for reliability, with data analyzed using signal-to-noise ratio (SNR).

Main Results:

Concussed players exhibited significantly lower SSVEP SNR compared to baseline.
Post-recovery, SSVEP SNR returned to baseline levels.
The portable system demonstrated high test-retest reliability and was validated against established EEG equipment.

Conclusions:

SSVEP responses differ significantly in athletes following a concussion.
The portable SSVEP system is reliable and capable of research-quality EEG measurements.
SSVEP holds potential as an objective aid for concussion assessment and management in athletes.