Walter D Lopez-Hernandez, Pavel Y Litvin, Jennifer Kung, Amy Bichlmeier, Heleya Rad, David J Hardy, Deborah Budding, Paul Vespa, David McArthur, David A Hovda, Ellen Woo, Joaquin M Fuster, Matthew J Wright
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引用次数: 0
Abstract
Objective: Under incidental learning conditions, traumatic brain injury (TBI) survivors exhibit worse recall and recognition for completed activities relative to healthy participants, but both groups demonstrate equivalent temporal order memory (TOM) for performed activities. We evaluated the role of encoding, consolidation, and retrieval in the activity memory (AM) in TBI.
Methods: 25 TBI survivors and 24 healthy participants were compared. A battery of neuropsychological tests served as the "activities." Activity ratings were completed after each test, to promote incidental learning. Following the last rating, AM trials were administered. Encoding, consolidation, and retrieval were assessed via Item Specific Deficit Approach.
Results: Age correcting ANCOVAs revealed worse AM recall in TBI participants, but equivalent TOM for activities. Hierarchical regressions showed that encoding predicted AM recall, but both encoding and retrieval predicted TOM for activities in the TBI group.
Conclusions: TBI-related memory deficits for AM recall are related to encoding, like observations of verbal memory deficits in TBI. TOM performances were predicted by both encoding and retrieval, suggesting that temporal order for activities, may be partially encoded by nondeclarative memory processes. This finding is partially consistent with previous work, showing that enhancing encoding improves recall for activities, but not TOM for activities.
期刊介绍:
pplied Neuropsychology-Adult publishes clinical neuropsychological articles concerning assessment, brain functioning and neuroimaging, neuropsychological treatment, and rehabilitation in adults. Full-length articles and brief communications are included. Case studies of adult patients carefully assessing the nature, course, or treatment of clinical neuropsychological dysfunctions in the context of scientific literature, are suitable. Review manuscripts addressing critical issues are encouraged. Preference is given to papers of clinical relevance to others in the field. All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief, and, if found suitable for further considerations are peer reviewed by independent, anonymous expert referees. All peer review is single-blind and submission is online via ScholarOne Manuscripts.