Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Traumatic Brain Injury l: Introduction

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Analytical amplitude/phase markers for neurological sleep apnea events.

Neurobiology of sleep and circadian rhythms·2026

Same author

Editorial: Advances in non-invasive brain stimulation techniques.

Frontiers in neuroscience·2025

Same author

Visual Evoked Potential Effects on Magnocellular and Parvocellular Pathways from Athletes After Mild Traumatic Brain Injuries.

Neuroscience insights·2024

Same author

Dual EEG alignment between participants during shared intentionality experiments.

Brain research·2022

Same author

Auditory and olfactory findings in patients with USH2A-related retinal degeneration-Findings at baseline from the rate of progression in USH2A-related retinal degeneration natural history study (RUSH2A).

American journal of medical genetics. Part A·2021

Same author

Automatic Detection of a Student's Affective States for Intelligent Teaching Systems.

Brain sciences·2021

Search research articles

Related Experiment Video

Updated: Jul 15, 2026

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Published on: November 19, 2012

A Pilot Investigation of Visual Pathways in Patients with Mild Traumatic Brain Injury.

Paul Harris¹, Mark H Myers²

¹Department of Vision Therapy, Southern College of Optometry, Memphis, TN 38104, USA.

Neurology International

|March 28, 2023

Summary

Power spectral density (PSD) analysis reveals alpha band loss in primary visual areas (V1) of individuals with sports-related mild traumatic brain injury (mTBI). This finding offers a new method for assessing mTBI visual deficits and tracking rehabilitation progress.

Keywords:

keyword power spectral density analysis magnocellular (MC) pathway mild traumatic brain injury parvocellular (PC) pathway visual evoked potentials

More Related Videos

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury

Published on: August 14, 2019

Intravital Imaging of Fluorescent Protein Expression in Mice with a Closed-Skull Traumatic Brain Injury and Cranial Window Using a Two-Photon Microscope

Intravital Imaging of Fluorescent Protein Expression in Mice with a Closed-Skull Traumatic Brain Injury and Cranial Window Using a Two-Photon Microscope

Published on: April 21, 2023

Related Experiment Videos

Last Updated: Jul 15, 2026

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Published on: November 19, 2012

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury

Published on: August 14, 2019

Intravital Imaging of Fluorescent Protein Expression in Mice with a Closed-Skull Traumatic Brain Injury and Cranial Window Using a Two-Photon Microscope

Intravital Imaging of Fluorescent Protein Expression in Mice with a Closed-Skull Traumatic Brain Injury and Cranial Window Using a Two-Photon Microscope

Published on: April 21, 2023

Area of Science:

Neuroscience
Vision Science
Sports Medicine

Background:

Sports-related mild traumatic brain injury (mTBI) often causes visual symptoms.
Primary visual areas (V1) are crucial for visual processing.
Understanding visual deficits post-mTBI is essential for diagnosis and treatment.

Purpose of the Study:

To investigate visual processing in V1 of individuals with sports-related mTBI.
To identify objective biomarkers for mTBI-related visual abnormalities.
To evaluate the potential of PSD analysis in assessing mTBI and its recovery.

Main Methods:

Applied five spatial frequency stimuli to assess visual processing in mTBI patients and controls.
Quantified spectral power and visual event-related potentials (VEPs) for eye and binocular integration.
Utilized power spectral density (PSD) analysis and VEP amplitude measurements.

Main Results:

PSD measurements showed a significant loss in the alpha band in mTBI patients.
This alpha band loss correlated with medium-sized receptive field loss, potentially indicating parvocellular processing deficits.
Significant differences in VEP amplitude and PSD measurements were found between mTBI and control groups.
PSD analysis demonstrated the ability to track improvements in V1 over time during rehabilitation.

Conclusions:

PSD analysis of primary visual areas (V1) provides a novel, objective method for assessing mTBI.
The findings suggest a link between alpha band deficits, receptive field loss, and visual impairments following mTBI.
PSD measurements can monitor visual recovery and treatment efficacy in mTBI patients.