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The effects of background factors on working memory and processing speed in auditory processing intervention
Bar Lambez1,2, Eli Vakil3, Gerald T Voelbel4,5,6
1Loewenstein Rehabilitation Center, Ra'anana, Israel.
Neuropsychological Rehabilitation
|July 28, 2026
Summary
Early intervention after traumatic brain injury (TBI) can improve cognitive function. Factors like time since injury and cognitive reserve influence recovery from auditory computerized cognitive remediation (CCR) in TBI patients.
Area of Science:
- Neuroscience
- Rehabilitation Medicine
- Cognitive Psychology
Background:
- Traumatic brain injury (TBI) frequently results in lasting cognitive impairments, particularly in working memory and processing speed.
- Auditory-based computerized cognitive remediation (CCR) offers a potential therapeutic avenue for individuals with TBI.
- Understanding factors influencing CCR efficacy is crucial for optimizing rehabilitation strategies.
Purpose of the Study:
- To investigate the predictive value of background factors and time post-injury on the response to an auditory CCR program in adults with chronic mild-to-severe TBI.
- To identify patient characteristics associated with greater cognitive gains following CCR.
Main Methods:
- A cohort of 48 adults with chronic mild-to-severe TBI participated in a 14-week auditory CCR program.
- Cognitive performance was assessed using measures of working memory, attention, processing speed, executive functions, and self-reported difficulties.
- Multiple regression analyses were employed to examine predictors of cognitive change, including age, education, premorbid intelligence, and time since injury.
Main Results:
- Shorter time since injury was significantly associated with greater improvements in auditory processing speed.
- Higher premorbid intelligence predicted enhanced visual processing speed gains.
- An inverse association between premorbid intelligence and verbal attention/working memory was observed, likely due to a ceiling effect.
Conclusions:
- Time since injury and cognitive reserve indicators (e.g., premorbid intelligence) play significant roles in determining individual response to auditory CCR in chronic TBI.
- These findings support the implementation of earlier interventions within the chronic TBI phase.
- Personalized rehabilitation strategies, considering premorbid cognitive capacity, are essential for maximizing CCR effectiveness.
Keywords:
Cognitive rehabilitationComputerized trainingPremorbid intelligenceProcessing speedTraumatic brain injuryWorking memoryMore Related Videos
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