Impact of traumatic brain injury on longterm memory explored
A new article provides insight into the variable impact of traumatic brain injury on long-term memory. Memory impairment affects 54% to 84% of individuals with TBI. While the variable impact of TBI on long-term memory has been recognized, the underlying cognitive mechanisms have not been detailed in this population. This variability in impairment among individuals with comparable injuries has been explained, in part, by the theory of cognitive reserve, i.e., higher intellectual enrichment confers a protective effect on long-term memory. To test the role of working memory in the protective effect of cognitive reserve on long-term memory, scientists evaluated 50 patients with moderate to severe TBI for working memory, long-term memory and cognitive reserve.