Neurology of anomia in the semantic variant of primary progressive aphasia
نویسندگان
چکیده
منابع مشابه
Impaired Interoceptive Accuracy in Semantic Variant Primary Progressive Aphasia
Background Interoception (the perception of internal bodily sensations) is strongly linked to emotional experience and sensitivity to the emotions of others in healthy subjects. Interoceptive impairment may contribute to the profound socioemotional symptoms that characterize frontotemporal dementia (FTD) syndromes, but remains poorly defined. Methods Patients representing all major FTD syndro...
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OBJECTIVE The semantic variant of primary progressive aphasia (svPPA) is typically associated with frontotemporal lobar degeneration (FTLD) with longTAR DNA-binding protein (TDP)-43-positive neuropil threads and dystrophic neurites (type C), and is only rarely due to a primary tauopathy or Alzheimer's disease. We undertook this study to investigate the localisation and magnitude of the presumed...
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Report of aCase |Theclinical, neuropsychometric, and imaging featuresof this casepreviouslywere reported in2008.2Briefly, awoman in her 60swas referred to the Behavioral Neurology Clinic formemory loss, characterizedbydifficulty rememberingnames.Longitudinal evaluations revealedprogressiveanomia with loss of word knowledge, prosopagnosia, and surface dyslexia. Her last completed neuropsychometr...
متن کاملBeyond the temporal pole: limbic memory circuit in the semantic variant of primary progressive aphasia.
Despite accruing evidence for relative preservation of episodic memory in the semantic variant of primary progressive aphasia (previously semantic dementia), the neural basis for this remains unclear, particularly in light of their well-established hippocampal involvement. We recently investigated the Papez network of memory structures across pathological subtypes of behavioural variant frontot...
متن کاملSemantic Typicality Effects in Primary Progressive Aphasia.
Prototypical items within a semantic category are processed faster than atypical items within the same category. This typicality effect reflects normal representation and processing of semantic categories and when absent may be reflective of lexical-semantic deficits. We examined typicality effects in individuals with semantic and nonsemantic variants of primary progressive aphasia (PPA; semant...
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ژورنال
عنوان ژورنال: Brain
سال: 2009
ISSN: 0006-8950,1460-2156
DOI: 10.1093/brain/awp138