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Related Concept Videos

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...

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Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
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Central auditory processing is altered after traumatic brain injury in Tanzanian adults.

Jonathan D Lichtenstein1,2,3, Christopher E Niemczak4,5, Abigail Fellows6

  • 1Department of Psychiatry, Geisel School of Medicine at Darmouth, Hanover, NH, United States.

Frontiers in Neuroscience
|December 29, 2025
PubMed
Summary
This summary is machine-generated.

Central auditory processing (CAP) tests, like the Triple Digit Test, can identify previous moderate to severe traumatic brain injury (msTBI). These accessible tests offer a resource-efficient way to assess brain function after TBI.

Keywords:
LMICs (low and middle income countries)assessmentcentral auditory processingsub-Sahara Africa (SSA)traumatic brain injury

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Area of Science:

  • Neuroscience
  • Audiology
  • Public Health

Background:

  • Traumatic brain injury (TBI) is a major global health issue, especially in low- and middle-income countries.
  • Long-term deficits are common after TBI, necessitating effective assessment tools.
  • Central auditory processing (CAP) deficits can result from brain injury.

Purpose of the Study:

  • To investigate the effectiveness of CAP testing as a biomarker for previous moderate to severe TBI (msTBI).
  • To identify specific CAP tests that can predict msTBI history.
  • To evaluate the utility of CAP tests in resource-limited settings.

Main Methods:

  • A case-control study was conducted in Tanzania with 70 individuals with msTBI and 46 healthy controls.
  • Participants underwent comprehensive behavioral CAP testing, including speech-in-noise, temporal resolution, and dichotic listening tasks.
  • Multivariate logistic regression and elastic net modeling were used to analyze the data.

Main Results:

  • The Triple Digit Test (TDT) significantly predicted msTBI status, independent of age and peripheral hearing.
  • Poorer CAP performance, especially in speech-in-noise tasks, was associated with a history of msTBI.
  • TDT performance emerged as the most robust predictor of msTBI history.

Conclusions:

  • CAP tests, particularly the TDT, are promising, accessible, and resource-efficient tools for assessing brain function after msTBI.
  • These tests can aid in identifying individuals with a history of TBI in clinical and low-resource settings.
  • Further research in diverse populations is needed to confirm predictive utility for long-term cognitive outcomes.