Studer, Martina; Heussler, Milena; Romano, Fabrizio; Lidzba, Karen; Bigi, Sandra (2024). Processing speed and its association with working memory and episodic memory 3-6 months after pediatric mild traumatic brain injury. Brain injury, 38(11), pp. 928-937. Informa Healthcare 10.1080/02699052.2024.2361626
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Processing_speed_and_its_association_with_working_memory_and_episodic_memory_3-6_months_after_pediatric_mild_traumatic_brain_injury.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (952kB) | Preview |
OBJECTIVE
Following mild traumatic brain injury (mTBI), children show reduced processing speed (PS). Evidence suggests that slowed PS after TBI is associated with working memory deficits. Our aim was to investigate several forms of PS and to examine its impact on working and episodic memory performance in children after mTBI.
METHOD
We included data of 64 children after mTBI and 57 healthy control children aged 8-16 years. PS (Color Naming, Coding, Symbol Search, Alertness) was compared between groups 1 week (T1) and 3-6 months (T2) after the injury; working and episodic memory outcome was compared between groups at T2.
RESULTS
Alertness at T1 and Color Naming at T1 and T2 were significantly reduced following mTBI compared to controls, although most group differences in PS disappeared when patients with previous impairments and mTBI were excluded. PS was predictive for episodic and working memory performance 3-6 months after injury, whereas group was a significant predictor of working memory.
CONCLUSIONS
Compared to healthy controls, children after mTBI showed reduced performance in verbal PS, which was associated with working memory. In children who are symptomatic after mTBI, diagnostic screening of PS could be helpful in identifying patients that could profit from speed-improving strategies.
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