In individuals with functional neurological disorder (FND), the brain generally appears structurally normal on clinical MRI scans but functions incorrectly (akin to a computer software crashing), resulting in patients experiencing symptoms including limb weakness, tremor, gait abnormalities and non-epileptic seizures. In some cases, childhood maltreatment may have been a contributing factor, yet links between risk factors such as childhood abuse and brain mechanisms for the development of FND remain poorly understood. In a new study published in Molecular Psychiatry, researchers led by investigators at Massachusetts General Hospital (MGH) examined the brains of individuals who experienced early-life trauma, some with FND and others without the condition. The findings may provide a better understanding of what happens in the brains of some patients with FND, as well as those with various other trauma-related brain disorders.
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