Synonyms
Primary progressive aphasia semantic; Semantic variant primary progress aphasia (svPPA); Temporal variant frontotemporal dementia
Definition
Semantic dementia (SD) is a progressive neurodegenerative syndrome characterized by a gradual decline in semantic processing and related language abilities. SD patients typically show difficulty with the comprehension and expression of words and a deterioration of semantic knowledge about places, people, objects, and general information (Murre et al. 2001). While the ability to produce speech remains unchanged, individuals with SD often struggle finding the correct word during conversation, first for less commonly used words and then for more rudimentary ones. These symptoms progress until the ability to understand the basic components of language and semantic relationships is lost, resulting in impaired ability to read, write, and partake in conversation (Kertesz et al. 2010).
What Is Semantic Dementia
Semantic dementia is one of several...
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Hantke, N., Bott, N.T., Samarina, V. (2017). Semantic Dementia. In: Pachana, N.A. (eds) Encyclopedia of Geropsychology. Springer, Singapore. https://doi.org/10.1007/978-981-287-082-7_357
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DOI: https://doi.org/10.1007/978-981-287-082-7_357
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