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Updated: Feb 5, 2026
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Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
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Changes in discourse structure over time following traumatic brain injury.
André Lindsey1, Jennifer Mozeiko2, Frank Krueger3
1Speech, Language, and Hearing Sciences Department, University of Connecticut, United States; Neurobiology of Language Training Program, University of Connecticut, United States; Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs, CT, United States.
Neuropsychologia
|September 4, 2018
Summary
Individuals with penetrating traumatic brain injury (pTBI) show immediate narrative discourse deficits. These impairments in story retelling remain stable over a short delay, suggesting encoding and consolidation difficulties.
Area of Science:
- Neuroscience
- Psychology
- Linguistics
Background:
- Traumatic brain injury (TBI), particularly penetrating TBI (pTBI), can lead to complex cognitive and linguistic deficits.
- Narrative discourse, a complex skill involving memory and executive functions, is often impaired after brain injury.
- Understanding the temporal stability of these discourse deficits is crucial for rehabilitation.
Purpose of the Study:
- To investigate structural changes in narrative discourse of individuals with pTBI.
- To examine the influence of immediate memory, working memory, and executive functions on narrative discourse.
- To compare discourse performance between pTBI and non-brain injured (NBI) groups in immediate and delayed retellings.
Main Methods:
- Compared narrative discourse (microlinguistic and macrostructural measures) in 123 individuals with pTBI and 44 NBI participants.
- Participants retold a wordless picture story immediately and 30 minutes after viewing.
- Regression analyses assessed the impact of memory and executive functions on discourse.
Main Results:
- Significant group differences in microlinguistic and macrostructural measures were found in the immediate retelling.
- No significant group differences emerged in the delayed retelling (30-min delay).
- Immediate memory significantly predicted the production of critical content in narrative discourse.
Conclusions:
- pTBI is associated with immediate deficits in narrative discourse structure.
- These discourse deficits appear stable over a short delay, indicating potential issues with encoding and consolidation.
- Cognitive functions, particularly immediate memory, play a role in narrative production after pTBI.
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