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[hal-03242838] The Role of White Matter Disconnection in the Symptoms Relating to the Anarchic Hand Syndrome: A Single Case Study

The anarchic hand syndrome refers to an inability to control the movements of one’s own hand, which acts as if it has a will of its own. The symptoms may differ depending on whether the brain lesion is anterior, posterior, callosal or subcortical, but the relative classifications are not conclusive. This study investigates the role of white matter disconnections in a patient whose symptoms are inconsistent with the mapping of the lesion site. A repeated neuropsychological investigation was associated with a review of the literature on the topic to identify the frequency of various different symptoms relating to this syndrome. Furthermore, an analysis of the neuroimaging regarding structural connectivity allowed us to investigate the grey matter lesions and white matter disconnections. The results indicated that some of the patient’s symptoms were associated with structures that, although not directly damaged, were dysfunctional due to a disconnection in their networks. This suggests that the anarchic hand may be considered as a disconnection syndrome involving the integration of multiple antero-posterior, insular and interhemispheric networks. In order to comprehend this rare syndrome better, the clinical and neuroimaging data need to be integrated with the clinical reports available in the literature on this topic. View Full-Text

[hal-03224904] Hodology of the superior longitudinal system of the human brain: a historical perspective, the current controversies, and a proposal


[hal-03225523] Hierarchical microstructure informed tractography


[hal-03147695] Evaluating next-generation sequencing in neuromuscular diseases with neonatal respiratory distress


[hal-03101306] Neural support of manual preference revealed by BOLD variations during right and left finger-tapping in a sample of 287 healthy adults balanced for handedness


[hal-03121357] Cerebral small vessel disease genomics and its implications across the lifespan


[hal-03004295] Brain connections derived from diffusion MRI tractography can be highly anatomically accurate—if we know where white matter pathways start, where they end, and where they do not go


[hal-03253479] Probabilistic mapping of language networks from high frequency activity induced by direct electrical stimulation


[hal-03003996] A new method for accurate in vivo mapping of human brain connections using microstructural and anatomical information


[hal-02904246] Age-Related Changes of Peak Width Skeletonized Mean Diffusivity (PSMD) Across the Adult Lifespan: A Multi-Cohort Study




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