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Identifier 000398991
Title Νευροανατομική βάση των διαταραχών του προφορικού λόγου και της ανάγνωσης στην ελληνική γλώσσα
Author Κασελίμης, Δημήτριος
Thesis advisor Ανδρέας Καστελλάκης
Reviewer Σίμος Παναγιώτης
Γιακουμάκη Στέλλα
Abstract The aim of the present study is threefold. First, to identify possible weaknesses of the neoassociationst model and evaluate the clinical utility of the traditional aphasia taxonomy. Second, to adapt and standardize a battery of language tests in Greek. Third, to investigate associations between specific B locations and discrete linguistic and reading deficits. With regard to the first aim, 65 stroke patients with left hemisphere Bs were assessed and classified using the Boston Diagnostic Aphasia Examination-short form. Bs were identified in 16 cortical and subcortical areas of the left hemisphere by two independent neuroradiologists. Results did not confirm the expected B-syndrome correspondence based on the classical model in a large proportion of patients, and traditional taxonomic system failed to correctly classify several cases. 512 healthy individuals from eight broad areas of Greece participated in the adaptation/standardization study (2nd aim). Investigation of the measures’ psychometric properties revealed effects of demographic factors on performance, and also provided indications of the tests’ clinical utility. These measures were subsequently administered to a sample of 58 chronic aphasic patients, in order to address the third aim of the study. Results indicated that the degree of impairment was related to B volume. Moreover, specific B loci were linked to discrete language and reading deficits. In sum, results suggested that the neoassociationist model is oversimplified and requires significant revision. Moreover, findings question the clinical validity and utility of the traditional taxonomic system and stresse the importance of developing new psychometric tools to assess aphasic patients within a deficitoriented (rather than syndrome-based) framework. Finally, the data presented here provide clues for possible relationships between left hemisphere cortical Bs and impairment of different language aspects.
Language Greek
Issue date 2014
Collection   School/Department--School of Social Sciences--Department of Psychology--Doctoral theses
  Type of Work--Doctoral theses
Permanent Link https://elocus.lib.uoc.gr//dlib/7/c/7/metadata-dlib-1454328237-730026-1175.tkl Bookmark and Share
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