학술논문
Memory retrieval brain–behavior disconnection in mild traumatic brain injury: A magnetoencephalography and diffusion tensor imaging study
Document Type
Report
Author
Source
Human Brain Mapping. November 2022, Vol. 43 Issue 17, p5296, 14 p.
Subject
Language
English
ISSN
1065-9471
Abstract
INTRODUCTION Traumatic brain injury is caused by an external force that can take place during sports activities, at work, in traffic, at home, or on the battlefield. Current challenges in [...]
: Mild traumatic brain (mTBI) injury is often associated with long‐term cognitive and behavioral complications, including an increased risk of memory impairment. Current research challenges include a lack of cross‐modal convergence regarding the underlying neural–behavioral mechanisms of mTBI, which hinders therapeutics and outcome management for this frequently under‐treated and vulnerable population. We used multi‐modality imaging methods including magnetoencephalography (MEG) and diffusion tensor imaging (DTI) to investigate brain–behavior impairment in mTBI related to working memory. A total of 41 participants were recruited, including 23 patients with a first‐time mTBI imaged within 3 months of injury (all male, age = 29.9, SD = 6.9), and 18 control participants (all male, age = 27.3, SD = 5.3). Whole‐brain statistics revealed spatially concomitant functional–structural disruptions in brain–behavior interactions in working memory in the mTBI group compared with the control group. These disruptions are located in the hippocampal–prefrontal region and, additionally, in the amygdala (measured by MEG neural activation and DTI measures of fractional anisotropy in relation to working memory performance; p
: Mild traumatic brain (mTBI) injury is often associated with long‐term cognitive and behavioral complications, including an increased risk of memory impairment. Current research challenges include a lack of cross‐modal convergence regarding the underlying neural–behavioral mechanisms of mTBI, which hinders therapeutics and outcome management for this frequently under‐treated and vulnerable population. We used multi‐modality imaging methods including magnetoencephalography (MEG) and diffusion tensor imaging (DTI) to investigate brain–behavior impairment in mTBI related to working memory. A total of 41 participants were recruited, including 23 patients with a first‐time mTBI imaged within 3 months of injury (all male, age = 29.9, SD = 6.9), and 18 control participants (all male, age = 27.3, SD = 5.3). Whole‐brain statistics revealed spatially concomitant functional–structural disruptions in brain–behavior interactions in working memory in the mTBI group compared with the control group. These disruptions are located in the hippocampal–prefrontal region and, additionally, in the amygdala (measured by MEG neural activation and DTI measures of fractional anisotropy in relation to working memory performance; p