Refugees and asylum seekers are defined in many ways but can be considered as those who did not make a voluntary choice to leave their country of origin and cannot return home in safety. Outcome data are limited and mostly focused on perinatal and mental health but do suggest significant levels of unmet need. This scoping review considered 72 studies where refugees and asylum seekers formed part or all of the population studied. Access to appropriate health care across the WHO European Region is very varied and is overwhelmingly shaped by legal frameworks and the regulation of the migration process. The need for improved communication with asylum seekers and coordinated action between agencies within and beyond the medical system is widely noted. Improved data to support intersectoral working to address the health care needs of asylum seekers and refugees are imperative.
Functional MRI (fMRI) studies reported disruption of resting-state networks (RSNs) in several neuropsychiatric disorders. PET with 18 F-FDG captures neuronal activity that is in steady state at a longer time span and is less dependent on neurovascular coupling. Methods: In the present study, we aimed to identify RSNs in 18 F-FDG PET data and compare their spatial pattern with those obtained from simultaneously acquired resting-state fMRI data in 22 middle-aged healthy subjects. Results: Thirteen and 17 meaningful RSNs could be identified in PET and fMRI data, respectively. Spatial overlap was fair to moderate for the default mode, left central executive, primary and secondary visual, sensorimotor, cerebellar, and auditory networks. Despite recording different aspects of neural activity, similar RSNs were detected by both imaging modalities. Conclusion: The results argue for the common neural substrate of RSNs and encourage testing of the clinical utility of resting-state connectivity in PET data.
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