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Related Concept Videos

Traumatic Memory01:20

Traumatic Memory

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Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
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Related Experiment Video

Updated: Apr 10, 2026

A Metric Test for Assessing Spatial Working Memory in Adult Rats Following Traumatic Brain Injury
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Factors Associated with Word Memory Test Performance in Persons with Medically Documented Traumatic Brain Injury.

Mark Sherer1, Lynne C Davis, Angelle M Sander

  • 1a Brain Injury Research Center , TIRR Memorial Hermann , Houston , TX , USA.

The Clinical Neuropsychologist
|June 12, 2015
PubMed
Summary
This summary is machine-generated.

Poor performance validity is common in traumatic brain injury (TBI) survivors. Emotional distress, lower injury severity, and older age are linked to invalid cognitive test results in TBI patients.

Keywords:
EffortNeuropsychological assessment.Performance validityTraumatic brain injuryWord Memory Test

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Area of Science:

  • Neuroscience
  • Psychology
  • Rehabilitation Medicine

Background:

  • Traumatic brain injury (TBI) can lead to cognitive impairments.
  • Assessing cognitive function in TBI requires reliable performance validity.
  • Poor performance validity may confound TBI outcome assessments.

Purpose of the Study:

  • To determine the rate of poor performance validity in a large, multicenter TBI cohort.
  • To identify factors associated with performance validity in TBI survivors.

Main Methods:

  • Prospective observational cohort study of 491 individuals with medically documented TBI.
  • Administration of cognitive tests, emotional distress, and post-concussive symptom questionnaires.
  • Inclusion of a performance validity test (Word Memory Test - WMT) and medical record review.

Main Results:

  • 117 participants (23.8%) exhibited poor performance validity.
  • Cognitive and questionnaire data reduced to four indices: emotional distress, processing speed, verbal memory, and verbal fluency.
  • Verbal memory, emotional distress, age, and injury severity predicted poor performance validity.

Conclusions:

  • Poor performance validity is prevalent in TBI patients, even outside litigation contexts.
  • Invalid test performance correlates with cognitive deficits, emotional distress, lower injury severity, and older age.
  • Many TBI patients with expected deficits showed poor performance validity, suggesting potential overestimation of impairment.