Semantic interference during object naming in agrammatic and logopenic primary progressive aphasia (PPA)
نویسندگان
چکیده
منابع مشابه
Phonological facilitation of object naming in agrammatic and logopenic primary progressive aphasia (PPA).
Phonological processing deficits are characteristic of both the agrammatic and logopenic subtypes of primary progressive aphasia (PPA-G and PPA-L). However, it is an open question which substages of phonological processing (i.e., phonological word form retrieval, phonological encoding) are impaired in these subtypes of PPA, as well as how phonological processing deficits contribute to anomia. I...
متن کاملPhonological Facilitation of Object Naming in Agrammatic and Logopenic Primary Progressive Aphasia (PPA): Evidence for a Phonological Processing Deficit
Naming is a pervasive deficit in primary progressive aphasia. However, the source of such deficits across PPA variants is little understood. In this study, individuals with agrammatic (PPA-G) and logopenic (PPA-L) PPA, along with age-matched controls, performed a pictureword interference task to test for online phonological processing deficits during naming. All groups exhibited phonological fa...
متن کاملThe new classification of primary progressive aphasia into semantic, logopenic, or nonfluent/agrammatic variants.
Primary progressive aphasia (PPA), typically resulting from a neurodegenerative disease such as frontotemporal lobar degeneration or Alzheimer's disease, is characterized by a progressive loss of specific language functions with relative sparing of other cognitive domains. Three variants of PPA are now recognized: semantic variant, logopenic variant, and nonfluent/agrammatic variant. We discuss...
متن کاملNeuropsychological Assessment of Primary Progressive Aphasia (PPA)
: http://si p://pubs.as The goal of this article is to outline the utility of both language and non-language testing in making a diagnosis of logopenic, nonfluent/agrammatic, and semantic variant primary progressive aphasias PPA as well as delineate important behavioral and speech features that can be detected via clinical observation. We review speech/language presentations, non-language cogni...
متن کاملElectrophysiology of object naming in primary progressive aphasia.
Primary progressive aphasia (PPA), a selective neurodegeneration of the language network, frequently causes object naming impairments. We examined the N400 event-related potential (ERP) to explore interactions between object recognition and word processing in 20 PPA patients and 15 controls. Participants viewed photographs of objects, each followed by a word that was either a match to the objec...
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ژورنال
عنوان ژورنال: Brain and Language
سال: 2012
ISSN: 0093-934X
DOI: 10.1016/j.bandl.2011.11.003