Semantic Event-Related Potential Components Reflect Severity of Comprehension Deficits in Aphasia
نویسندگان
چکیده
منابع مشابه
The N400 event-related potential in aphasia.
Although the N400 component of event-related potentials (ERPs) is suggested to reflect language processing, exactly which language processing functions N400 is sensitive to is not clear. We investigated this component in aphasic patients with some impairments of language processing. Meaningful and meaningless words in Kana (Japanese characters) were used as stimuli under a visual oddball paradi...
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In this study the N400 component of the event-related potential was used to investigate spoken sentence understanding in Broca's and Wernicke's aphasics. The aim of the study was to determine whether spoken sentence comprehension problems in these patients might result from a deficit in the on-line integration of lexical information. Subjects listened to sentences spoken at a normal rate. In ha...
متن کاملAn event-related brain potential study of sentence comprehension in preschoolers: semantic and morphosyntactic processing.
The goal of this study was to investigate the distinctiveness and the relative time course of the event-related brain potentials (ERP) elicited by syntactically and semantically anomalous words within sentences in 36- and 48-month-old children. ERPs were recorded while children listened to semantically anomalous (i.e., My uncle will blow the movie*), syntactically anomalous (i.e., My uncle will...
متن کاملSemantic bias, homograph comprehension, and event-related potentials in schizophrenia.
OBJECTIVES It is controversial whether a semantic processing bias for strong associates is present in schizophrenia, and unknown whether the language abnormalities observed in schizophrenia can be attributed to dysfunctions early or late in cognitive processing. Combined behavioral and event-related potential (ERP) data can indicate the nature and timing of such abnormalities. METHODS Sensibi...
متن کاملGrammatical comprehension deficits in non-fluent/agrammatic primary progressive aphasia.
IMPORTANCE Grammatical comprehension difficulty is an essential supporting feature of the non-fluent/agrammatic variant of primary progressive aphasia (naPPA), but well-controlled clinical measures of grammatical comprehension are unavailable. OBJECTIVE To develop a measure of grammatical comprehension and examine this comparatively in PPA variants and behavioural-variant frontotemporal degen...
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ژورنال
عنوان ژورنال: Neurorehabilitation and Neural Repair
سال: 2009
ISSN: 1545-9683,1552-6844
DOI: 10.1177/1545968309348311