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Related Concept Videos

Amnesia01:13

Amnesia

Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
Traumatic Brain Injury l: Introduction01:28

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...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...

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Related Experiment Video

Updated: Jun 22, 2026

A Neuroscientific Approach to the Examination of Concussions in Student-Athletes
11:32

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

Published on: December 8, 2014

13.4K

Concussion is confusing us all.

David J Sharp1, Peter O Jenkins1

  • 1Computational, Cognitive, and Clinical Neuroimaging Laboratory, Division of Brain Sciences, Faculty of Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK.

Practical Neurology
|May 16, 2015
PubMed
Summary
This summary is machine-generated.

The term "concussion" lacks clear definition and pathological meaning, leading to problematic patient management. Researchers propose abandoning this term for precise traumatic brain injury diagnosis and symptom cause identification.

Keywords:
ConcussionMild traumatic brain injuryPost-concussiveTBITraumatic brain injury

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Last Updated: Jun 22, 2026

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Area of Science:

  • Neurology
  • Traumatic Brain Injury Research

Background:

  • The term "concussion" is historically used for brief, transient brain dysfunction after head injury.
  • Current understanding assumes no long-term sequelae, despite variable symptom duration.

Observation:

  • Concussion symptoms vary widely and can persist for years.
  • Reliable early predictors for concussion outcomes are lacking.
  • Vague terminology creates diagnostic biases and hinders scientific progress.

Findings:

  • The term "concussion" lacks a clear definition and pathological basis.
  • Existing terminology leads to misconceptions in diagnosis and patient care.

Implications:

  • Advocates for abandoning the term "concussion" in clinical and scientific contexts.
  • Recommends classifying traumatic brain injury severity and diagnosing specific causes of post-traumatic symptoms.