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Posterior Fossa Syndrome After Cerebellar Stroke.
We report longitudinal clinical, neurocognitive and neuroradiological findings in a 71-year-old right-handed patient who developed PFS following a right cerebellar haemorrhage that was not surgically evacuated. During follow-up, functional neuroimaging was conducted by means of quantified Tc-99m-ECD SPECT studies. After a 10-day period of akinetic mutism, the clinical picture developed into cerebellar cognitive affective syndrome (CCAS) with reversion to a previously learnt accent, consistent with neurogenic foreign accent syndrome (FAS). No psychometric evidence for dementia was found. Quantified Tc-99m-ECD SPECT studies ...
Source: Cerebellum - April 11, 2013 Category: Neuroscience Authors: Mariën P, Verslegers L, Moens M, Dua G, Herregods P, Verhoeven J Tags: Cerebellum Source Type: research

Cognitive and Affective Disturbances Following Focal Brainstem Lesions: A Review and Report of Three Cases.
Abstract Although insights in cerebellar neurocognition and affect are continuously growing, little is known about the role of the brainstem in cognitive and behavioural processing. In this paper, it is hypothesized that the brainstem is an inherent functional part of the cerebellocerebral network subserving cognition and affect, and that isolated brainstem damage may cause a constellation of symptoms closely resembling the cerebellar cognitive affective syndrome (CCAS) following cerebellar pathology. In order to investigate these premises, the available literature on cognitive and affective disturbances followin...
Source: Cerebellum - December 19, 2014 Category: Neuroscience Authors: D'aes T, Mariën P Tags: Cerebellum Source Type: research

The Posterior Fossa and Foreign Accent Syndrome: Report of Two New Cases and Review of the Literature.
Abstract Foreign accent syndrome is a rare motor speech disorder that causes patients to speak their language with a non-native accent. In the neurogenic condition, the disorder develops after lesions in the language dominant hemisphere, often affecting Broca's area, the insula, the supplementary motor area and the primary motor cortex. Here, we present two new cases of FAS after posterior fossa lesions. The first case is a 44-year-old, right-handed, Dutch-speaking man who suffered motor speech disturbances and a left hemiplegia after a pontine infarction. Quantified SPECT showed a bilateral hypoperfusion in the i...
Source: Cerebellum - March 23, 2017 Category: Neuroscience Authors: Keulen S, Mariën P, van Dun K, Bastiaanse R, Manto M, Verhoeven J Tags: Cerebellum Source Type: research