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Advisor(s)
Abstract(s)
Introdução: Em países desenvolvidos, o envelhecimento global da população é, cada vez mais,
uma preocupação social. Como consequência deste fenómeno, tem existido necessidade de
investimento em recursos, estruturas e investigação na área. Várias capacidades cognitivas
sofrem alterações com a idade, em alguns casos estas alterações são superiores às esperadas
no envelhecimento normal. Assim, é fundamental estudar o declínio da capacidade cognitiva,
normal e patológica. Vários estudos têm vindo a explorar o Defeito Cognitivo Ligeiro (DCL). Um
critério essencial para este diagnóstico é a manutenção da funcionalidade. Instrumentos como
a UPSA têm sido cada vez mais usados como medida de funcionalidade baseada no
desempenho. Este trabalho procura investigar, numa amostra da população com DCL, se a
presença da variável sintomatologia depressiva, tem um impacto negativo na funcionalidade.
Secundariamente, pretende-se verificar a influência da memória e das funções executivas na
funcionalidade da mesma amostra.
Metodologia: A amostra foi composta por 34 sujeitos com DCL com idades compreendidas entre
os 65 e os 89 anos. Para a recolha de dados, foram utilizados os seguintes instrumentos: um
questionário sociodemográfico, provas selecionadas que avaliam os domínios da Memória e
Funções Executivas na Bateria de Lisboa para Avaliação de Demências (BLAD), a Escala de
Depressão Geriátrica (GDS-15) e a UCSD Performance-Based Skills Assessment (UPSA).
Resultados: Os resultados não evidenciaram uma correlação significativa entre sintomatologia
depressiva (GDS-15) e o desempenho na prova de funcionalidade (UPSA). Verificou-se ainda
que, a variável com maior poder preditivo de desempenho na funcionalidade foi a memória a
curto prazo, avaliada pela prova “Memória Verbal com Interferência”, da BLAD.
Conclusão: Os resultados obtidos não mostraram uma correlação significativa entre
funcionalidade e sintomatologia depressiva, não corroborando os resultados verificados na
maioria de outros estudos encontrados na literatura. Numa segunda análise, os resultados
mostraram que a memória de curto prazo mostrou maior poder preditivo de desempenho na
funcionalidade, o que não está de acordo com os resultados obtidos noutros estudos que
referem que as funções executivas poderão ter mais influência no desempenho das AIVD e
ABVD.
Introduction: In developed countries, the global aging of the population is increasingly a social concern. As a consequence of this phenomenon, there has been a need for investment in resources, structures and research in the area. Various cognitive abilities change with age, in some cases these changes are greater than expected in normal aging. Thus, it is essential to study the decline in cognitive aging, in a normal and pathological capacity. Several studies have been exploring Mild Cognitive Impairment (MCI). An essential criterion for this diagnosis is an assessment of functionality. Instruments such as UPSA have been increasingly used as a measure of functionality, based on performance. This study seeks to investigate, in a sample of the population with MCI, whether the presence of the variable depressive symptoms has a negative impact on functionality. Secondly, it is intended to verify the influence of memory and executive functions on functionality, in the same sample. Method: The sample for this study was composed of 34 subjects with MCI, aged between 65 and 89 years old. The following instruments were used to collect data: a sociodemographic questionnaire, selected tests that evaluated Memory and Executive Functions in Bateria de Lisboa para Estudos de Demências (BLAD), the Geriatric Depression Scale (GDS-15) and the UCSD Performance-Based Skills Assessment (UPSA). Results: The results showed no significant correlation between depressive symptoms (GDS-15) and functionality (UPSA). Additionally, the results suggested that the variable with the highest predictive value of impairment in functionality was short-term memory. Conclusion: Given the literature correlation between impairment in functionality and depressive symptomatology, this hypothesis was tested. Depression is considered the most prevalent mental health problem in elders, often leading to loss of autonomy. The results found in this study did not show a significant correlation between functionality and depressive symptoms, thus not corroborating the findings in literature. In a second analysis, the results showed that short-term memory showed greater predictive power of performance in functionality, which is not in agreement with the results obtained in other studies that state that executive functions may have more influence on the performance of IADL and BADL’s than other cognitive domains.
Introduction: In developed countries, the global aging of the population is increasingly a social concern. As a consequence of this phenomenon, there has been a need for investment in resources, structures and research in the area. Various cognitive abilities change with age, in some cases these changes are greater than expected in normal aging. Thus, it is essential to study the decline in cognitive aging, in a normal and pathological capacity. Several studies have been exploring Mild Cognitive Impairment (MCI). An essential criterion for this diagnosis is an assessment of functionality. Instruments such as UPSA have been increasingly used as a measure of functionality, based on performance. This study seeks to investigate, in a sample of the population with MCI, whether the presence of the variable depressive symptoms has a negative impact on functionality. Secondly, it is intended to verify the influence of memory and executive functions on functionality, in the same sample. Method: The sample for this study was composed of 34 subjects with MCI, aged between 65 and 89 years old. The following instruments were used to collect data: a sociodemographic questionnaire, selected tests that evaluated Memory and Executive Functions in Bateria de Lisboa para Estudos de Demências (BLAD), the Geriatric Depression Scale (GDS-15) and the UCSD Performance-Based Skills Assessment (UPSA). Results: The results showed no significant correlation between depressive symptoms (GDS-15) and functionality (UPSA). Additionally, the results suggested that the variable with the highest predictive value of impairment in functionality was short-term memory. Conclusion: Given the literature correlation between impairment in functionality and depressive symptomatology, this hypothesis was tested. Depression is considered the most prevalent mental health problem in elders, often leading to loss of autonomy. The results found in this study did not show a significant correlation between functionality and depressive symptoms, thus not corroborating the findings in literature. In a second analysis, the results showed that short-term memory showed greater predictive power of performance in functionality, which is not in agreement with the results obtained in other studies that state that executive functions may have more influence on the performance of IADL and BADL’s than other cognitive domains.
Description
Keywords
Defeito cognitivo ligeiro Funcionalidade Sintomatologia depressiva Medidas baseadas no desempenho Mild cognitive impairment Functionality Depressive symptoms Performance based measures