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Language Disorder in Progressive Supranuclear Palsy and Corticobasal Syndrome: Neural Correlates and Detection by the MLSE Screening Tool. ...
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Predicting loss of independence and mortality in frontotemporal lobar degeneration syndromes. ...
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Language Disorder in Progressive Supranuclear Palsy and Corticobasal Syndrome: Neural Correlates and Detection by the MLSE Screening Tool.
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Peterson, Katie; Jones, Simon; Patel, Nikil; Tsvetanov, Kamen A.; Ingram, Ruth; Cappa, Stefano F; Lambon Ralph, Matthew; Patterson, Karalyn; Garrard, Peter; Rowe, James. - : Frontiers Media SA, 2021. : Front Aging Neurosci, 2021
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Abstract:
Background: Progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS) affect speech and language as well as motor functions. Clinical and neuropathological data indicate a close relationship between these two disorders and the non-fluent variant of primary progressive aphasia (nfvPPA). We use the recently developed Mini Linguistic State Examination tool (MLSE) to study speech and language disorders in patients with PSP, CBS, and nfvPPA, in combination with structural magnetic resonance imaging (MRI). Methods: Fifty-one patients (PSP N = 13, CBS N = 19, nfvPPA N = 19) and 30 age-matched controls completed the MLSE, the short form of the Boston Diagnostic Aphasia Examination (BDAE), and the Addenbrooke's Cognitive Examination III. Thirty-eight patients and all controls underwent structural MRI at 3 Tesla, with T1 and T2-weighted images processed by surface-based and subcortical segmentation within FreeSurfer 6.0.0 to extract cortical thickness and subcortical volumes. Morphometric differences were compared between groups and correlated with the severity of speech and language impairment. Results: CBS and PSP patients showed impaired MLSE performance, compared to controls, with a similar language profile to nfvPPA, albeit less severe. All patient groups showed reduced cortical thickness in bilateral frontal regions and striatal volume. PSP and nfvPPA patients also showed reduced superior temporal cortical thickness, with additional thalamic and amygdalo-hippocampal volume reductions in nfvPPA. Multivariate analysis of brain-wide cortical thickness and subcortical volumes with MLSE domain scores revealed associations between performance on multiple speech and language domains with atrophy of left-lateralised fronto-temporal cortex, amygdala, hippocampus, putamen, and caudate. Conclusions: The effect of PSP and CBS on speech and language overlaps with nfvPPA. These three disorders cause a common anatomical pattern of atrophy in the left frontotemporal language network and striatum. The MLSE is a short clinical screening tool that can identify the language disorder of PSP and CBS, facilitating clinical management and patient access to future clinical trials.
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URL: https://www.repository.cam.ac.uk/handle/1810/324947 https://doi.org/10.17863/CAM.72401
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Placing Matter: A Summary of a Convenient Vocabulary, for the experiencing of Metaplasticity, Spatial Assemblages and Typological Boundary Conditions
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Metabolomic changes associated with frontotemporal lobar degeneration syndromes. ...
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Redefining the multidimensional clinical phenotypes of frontotemporal lobar degeneration syndromes ...
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Predicting loss of independence and mortality in frontotemporal lobar degeneration syndromes ...
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Predicting loss of independence and mortality in frontotemporal lobar degeneration syndromes
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Metabolomic changes associated with frontotemporal lobar degeneration syndromes.
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Paracingulate Sulcus Morphology and Hallucinations in Clinical and Nonclinical Groups. ...
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Paracingulate Sulcus Morphology and Hallucinations in Clinical and Nonclinical Groups.
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Evidence for causal top-down frontal contributions to predictive processes in speech perception ...
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Artificial grammar learning in vascular and progressive non-fluent aphasias ...
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Apathy and impulsivity in frontotemporal lobar degeneration syndromes
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Evidence for causal top-down frontal contributions to predictive processes in speech perception
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Artificial grammar learning in vascular and progressive non-fluent aphasias
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Decreased integrity of the fronto-temporal fibers of the left inferior occipito-frontal fasciculus associated with auditory verbal hallucinations in schizophrenia
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Hear today, not gone tomorrow? An exploratory longitudinal study of auditory verbal hallucinations (hearing voices)
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Finding Zelig in Text:A Measure for Normalising Linguistic Accommodation
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