Long-term consequences of mild traumatic brain injury
Abstract: A debate has ensued about the long-term consequences of mild traumatic brain injury, the ‘signature injury’ of the Iraq and Afghanistan Wars. Most epidemiological studies have found that mild traumatic brain injury is unrelated to unspecific post-concussion symptoms based on self-reported symptoms. A longitudinal study, in this issue of the Journal, using objective tests has demonstrated that mild traumatic brain injury has limited lasting neuropsychological consequences.
Abstract: U.S. Air Force remotely piloted aircraft (USAF RPA) personnel face diverse stressors negatively affecting psychological health and military readiness. Prior research in diverse populations supports predictable impact of the COVID-19 pandemic on occupational stressors, burnout, and more distal outcomes. Extending earlier studies linking broad variables (e.g., COVID-19 threat → work stress → burnout), the current study tests and refines an expanded mediation model based on multiple distinct pandemic concerns, occupational stressors, and burnout facets as antecedents of psychological distress mid-pandemic in RPA personnel (N = 496). Differential representation of demands, resources, and rewards evident across distinct occupational stressors in light of job demands/resources theory guided specification of mediated pathways. SEM analysis yielded moderate fit. Following removal of non-significant paths and addition of two interpretable direct paths, fit was improved, yielding seven dominant pandemic concern → occupational stressor → burnout → psychological distress pathways. In support of domain specification, five 'hub' variables (pandemic-driven change, personal stressors, workload, leader communication, and exhaustion) emerged as key intervention targets in mitigating distress in the USAF RPA community and similar populations during future pandemic-related crises.