Digitale Bibliotheek
Sluiten Bladeren door artikelen uit een tijdschrift
 
<< vorige    volgende >>
     Tijdschrift beschrijving
       Alle jaargangen van het bijbehorende tijdschrift
         Alle afleveringen van het bijbehorende jaargang
           Alle artikelen van de bijbehorende aflevering
                                       Details van artikel 3 van 5 gevonden artikelen
 
 
  Semantic Category Word Search Impairment in Schizophrenia
 
 
Titel: Semantic Category Word Search Impairment in Schizophrenia
Auteur: Gurd, J. M.
Elvevag, B.
Cortina-Borja, M.
Verschenen in: Cognitive neuropsychiatry
Paginering: Jaargang 2 (1997) nr. 4 pagina's 291-302
Jaar: 1997-11-01
Inhoud: Mechanisms of lexical retrieval within natural semantic categories are investigated in patients with schizophrenia. We predicted and found that schizophrenics show lexical retrieval impairments on word search tasks. Experiments are described in which subjects either scan through word lists for single target items (simple search), or search for members of a semantic category (semantic search). Two groups of subjects are employed: medicated schizophrenics, and a comparison group with similar age and premorbid intelligence. A significant between-group difference is reported (for both speed and accuracy) in semantic category search but not in simple search. It is known that many schizophrenic patients have word finding difficulties (Frith, 1992; Frith et al., 1991). Our results support the claim that in some schizophrenics at least, selective lexical-semantic parallel processing deficits may underlie word finding aberrations. It is possible that such dysfunctions reflect weakened connection strengths between units making up a lexical-semantic field (as characterised by proximity to a prototype).
Uitgever: Psychology Press
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 3 van 5 gevonden artikelen
 
<< vorige    volgende >>
 
 Koninklijke Bibliotheek - Nationale Bibliotheek van Nederland