Semantic processing in aphasia: evidence from semantic priming and semantic interference.
Semantic processing theories propose activation of concepts via semantic features, with interference from semantic neighbours arising due to shared features. Semantic impairment has been explained as damage to activation and interference mechanisms, and linked to impaired semantic control. This stud...
| Publicado en: | Language, Cognition & Neuroscience Vol. 36; no. 4; pp. 491 - 517 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
May2021
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=150006631&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 150006631 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23273798 IQ6T jtl: Language, Cognition & Neuroscience issn: 23273798 maglogo: N pubinfo: dt: May2021 vid: 36 iid: 4 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 150006631 147237911 150006631 150006631 10.1080/23273798.2020.1849749 150006631 ppf: 491 ppct: 26 formats: tig: atl: Semantic processing in aphasia: evidence from semantic priming and semantic interference. aug: au: Dyson, Lucy Morgan, Jane Herbert, Ruth affil: Division of Human Communication Sciences, Health Sciences School, University of Sheffield, Sheffield, UK sug: subj: Semantics Evaluation Language Processing Evaluation Task Performance and Analysis Aphasia Physiopathology Human Executive Function Experimental Studies Competitive Behavior Language Disorders Diagnosis Dementia ab: Semantic processing theories propose activation of concepts via semantic features, with interference from semantic neighbours arising due to shared features. Semantic impairment has been explained as damage to activation and interference mechanisms, and linked to impaired semantic control. This study investigated semantic activation and interference in 20 people with aphasia. We found normal semantic priming or hyper-priming, coupled with significant semantic interference effects, in most of the participants, regardless of scores on standard semantic tasks. There was little evidence of a relationship between executive functions and semantic processing. The data indicate that semantic activation is unimpaired in most people with aphasia. Apparent difficulties with semantic processing are predominantly found when tasks involve resolving competition from close semantic neighbours. These novel findings question the use of offline tasks involving semantic competitors in diagnosis of semantic deficits in aphasia – and other conditions such as dementia – and demand revised diagnostic methods. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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