Poster (Painel)
1069-1 | Group comparison and case series studies in stroke patients: evidence of validity for the BVRT | Autores: | Segabinazi, J. D.1, Zortea, M.2, Rodrigues, de C. J.2, Trentini, C. M.2, Hutz, C. S.2, Bandeira, D. R.2, Salles, F. J.2
1 UNIRITTER - Centro Universitário Ritter dos Reis (Orfanotrófio, 555), 2 UFRGS - Universidade Federal do Rio Grande do Sul (Rua Ramiro Barcelos, 2600) |
E-mail Apresentador: |
Resumo: Resumo Geral da Mesa
We verified construct validity evidences related to criteria and response process of the Benton Visual Retention Test (BVRT) in post-cerebral vascular accident (stroke) patients. A mixed design quasi-experimental (contrast groups and correlational) and a case series approach was used. Forty-two adults and elderly participated: twenty-one were stroke patients, 11 with left hemisphere injury (LHI) and 10 with right hemisphere injury (RHI), and 21 were neurologically healthy controls paired to patients based on sex, age and years of study. Considering total sample, average age was 56.8 (SD = 8.9), average years of formal study was 9.3 (DP = 3.8), 24 were women. Apart from the BVRT, they responded the Instrument for Brief Neuropsycholinguistic Evaluation for Expressive Aphasia NEUPSILIN-Af, a short-form of the Wechsler Adult Intelligence Scale (WASI) and other instruments for inclusion criteria. Data were analyzed using parametric as well non-parametric ANCOVAs, according to data distribution, and had Intelligence Quotient (IQ) as covariant. In the case series analyses we used Crawford, Garthwaite, and Porter (2010)’s approach. The findings indicated the three research groups (LHI, RHI and controls) had significant differences in the BVRT Administration C (Copy) scores (Correct, Errors and the Rasch analysis coefficient), in terms of lower performance for the clinical groups, independent of having right or left hemisphere injury. The case series analysis showed an impaired performance on BVRT for six cases (thee with RHI and three with LHI) that presented functional dissociation between memory and copy scores, in terms of significantly lower Administration C (Copy) score compared to Administration A (Memory) score. Results point out some stroke patients, although in a chronic phase, can still present important deficits of visuoconstructive skills and moderate impairments of visual memory abilities. Construct validity evidences for the BVRT were found, which indicate the test remains a useful assessment tool for clinical neuropsychology.
Palavras-chave: BVRT, stroke, visual memory, visuo-constructive abilities, validity |