Estudo da memória espacial com a tarefa “soundspace” em realidade virtual
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Data
2020
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Resumo
A memória espacial é uma função cognitiva que utiliza informações sobre o ambiente
tridimensional que suporta orientação espacial e navegação com base em mecanismos de
memória de curto e longo prazo. Estudos anteriores mostram que com cegueira apresentam
desempenho inferior em tarefas de navegação espacial com complexidades de memória,
sugerindo que o processamento espacial é afetado pela falta de informações visuais. Portanto,
foi desenvolvido e testado tarefas de realidade virtual que envolvam navegação espacial sem
visão, usando pistas auditivas 3D em três níveis diferentes de dificuldade para entender a
contribuição das informações auditivas para a navegação espacial. O desempenho da tarefa foi
avaliado de acordo com medidas comportamentais relacionadas a colisões de obstáculos,
número de etapas, avisos durante a tarefa e tempo de execução. Os resultados mostraram uma
relação entre desempenho nos testes neuropsicológicos de memória e desempenho de tarefas,
que fornecem evidências de validade convergente para esta tarefa. Por outro lado, um aumento
na complexidade da tarefa afetou o desempenho ao longo do tempo de execução. Esses dados
preliminares contribuem para a validação da tarefa de navegação espacial 3D usando o som a
ser estudado em indivíduos cegos para permitir entender a representação da informação
espacial em indivíduos cegos.
Spatial memory is a cognitive function using information about the three-dimensional environment that supports spatial orientation and navigation based on short and long-term memory mechanisms. Previous studies show that blind individuals perform poorly on spatial navigation tasks with higher memory demands, suggesting that spatial processing is affected by lack of visual information. Therefore, we aimed at developing and testing a virtual reality tasks involving non-sighted spatial navigation by using 3D auditory cues in three different levels of difficulty to understand the contribution of auditory information for spatial navigation. Task performance was assessed according to behavioral measures related to obstacle collisions, number of steps, prompts during the task, and execution time. These variables were correlated with neuropsychological information from established instruments assessing global cognition and memory abilities. The results showed a relationship between performance in the neuropsychological tests of memory and task performance, which provide evidence of convergent validity for this task. On the other hand, an increase in task complexity affected performance through execution time. This preliminary data contributes to the validation of the 3D spatial navigation task using sound to be studied in blind individuals to allow understanding the representation of spatial information in blind individuals.
Spatial memory is a cognitive function using information about the three-dimensional environment that supports spatial orientation and navigation based on short and long-term memory mechanisms. Previous studies show that blind individuals perform poorly on spatial navigation tasks with higher memory demands, suggesting that spatial processing is affected by lack of visual information. Therefore, we aimed at developing and testing a virtual reality tasks involving non-sighted spatial navigation by using 3D auditory cues in three different levels of difficulty to understand the contribution of auditory information for spatial navigation. Task performance was assessed according to behavioral measures related to obstacle collisions, number of steps, prompts during the task, and execution time. These variables were correlated with neuropsychological information from established instruments assessing global cognition and memory abilities. The results showed a relationship between performance in the neuropsychological tests of memory and task performance, which provide evidence of convergent validity for this task. On the other hand, an increase in task complexity affected performance through execution time. This preliminary data contributes to the validation of the 3D spatial navigation task using sound to be studied in blind individuals to allow understanding the representation of spatial information in blind individuals.
Descrição
Orientação: Jorge Oliveira
Palavras-chave
MESTRADO EM NEUROPSICOLOGIA APLICADA, PSICOLOGIA, MEMÓRIA ESPACIAL, REALIDADE VIRTUAL, COGNIÇÃO, PSYCHOLOGY, SPATIAL MEMORY, VIRTUAL REALITY, COGNITION