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Abstract(s)
Este estudo tem como objetivo analisar e comparar alterações ao nível da
compreensão semântica na Afasia Primária Progressiva da variante semântica (APPS),
na Afasia de Wernicke (AW) e no Défice Cognitivo Ligeiro (DCL) e responder à
questão orientadora se as alterações semânticas nos sujeitos com APP-S apontam para
um acesso ao conhecimento semântico diferente do dos sujeitos com AW e do dos
sujeitos com DCL. Através de um estudo descritivo-comparativo, analisaram-se 6
doentes com idades compreendidas entre 51 e 86 anos de idade, letrados e sem
défices visuais e auditivos graves, divididos em três grupos de dois doentes em cada
patologia. Foram administradas seis provas de compreensão semântica com tarefas de
decisão semântica de frases, de semelhanças, associação e decisão lexical,
categorização e compreensão de frases idiomáticas e provérbios. Os resultados
revelaram que os doentes com APP apresentam mais défices semânticos do que os
doentes com AW e DCL, evidenciando um acesso ao processamento semântico
diferente com a degradação parcial do conhecimento conceptual. Nos doentes com
AW os défices semânticos resultaram de alterações ao nível do acesso a esse
conhecimento, enquanto que o defeito de memória nos doentes com DCL não teve
nenhum impacto ao nível da linguagem e, por sua vez, no conhecimento semântico.
Study aims at analyzing and comparing the changes in Primary Progressive Aphasia in its Semantic memory variant (PPA-S), in Wernicke's Aphasia (WA) and in Mild Cognitive Impairment (MCI) all at the level of semantic understanding. It also aims at answering the guiding question of whether semantic changes in PPA - S patients points out to a different access path to semantic knowledge when compared with WA patients and MCI patients. This comparative-descriptive study has analyzed six patients aged between 51 and 86 years, literate and with no severe visual or hearing deficits, divided into three groups of two patients for each pathology. Six tests of semantic understanding were administrated with semantic decision tasks in sentences, tests of similarities, of association and lexical decision, of categorization and of understanding of idioms and proverbs. The results suggest that patients with PPA deficits showed more semantic deficits than WA patients or MCI patients, and they seem to have a different access to the semantic processing with partial degradation of conceptual knowledge. By WA patients the semantic deficits are a consequence of changes occurring in the access to that knowledge while the memory defects in MCI patients showed no impact, neither at the language level nor in semantic knowledge.
Study aims at analyzing and comparing the changes in Primary Progressive Aphasia in its Semantic memory variant (PPA-S), in Wernicke's Aphasia (WA) and in Mild Cognitive Impairment (MCI) all at the level of semantic understanding. It also aims at answering the guiding question of whether semantic changes in PPA - S patients points out to a different access path to semantic knowledge when compared with WA patients and MCI patients. This comparative-descriptive study has analyzed six patients aged between 51 and 86 years, literate and with no severe visual or hearing deficits, divided into three groups of two patients for each pathology. Six tests of semantic understanding were administrated with semantic decision tasks in sentences, tests of similarities, of association and lexical decision, of categorization and of understanding of idioms and proverbs. The results suggest that patients with PPA deficits showed more semantic deficits than WA patients or MCI patients, and they seem to have a different access to the semantic processing with partial degradation of conceptual knowledge. By WA patients the semantic deficits are a consequence of changes occurring in the access to that knowledge while the memory defects in MCI patients showed no impact, neither at the language level nor in semantic knowledge.
Description
Keywords
Processamento semântico Memória semântica Afasia primária progressiva Afasia de Wernicke Défice cognitivo ligeiro Semantic processing Primary progressive aphasia Semantic memory Wernicke aphasia Mild cognitive impairment