Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10071/15696
Autoria: | Rosa, P. Gamito, P. Oliveira, J. Morais, D. Pavlovic, M. Smyth, O. Maia, I. Gomes, T. |
Data: | 2017 |
Título próprio: | Eye movement analysis and cognitive assessment: the use of comparative visual search tasks in a non-immersive vr application |
Volume: | 56 |
Número: | 2 |
Paginação: | 112 - 116 |
ISSN: | 0026-1270 |
DOI (Digital Object Identifier): | 10.3414/ME16-02-0006 |
Palavras-chave: | Eye movements Attention Memory Virtual reality Comparative visual search task |
Resumo: | Background: An adequate behavioral response depends on attentional and mnesic processes. When these basic cognitive functions are impaired, the use of non-immersive Virtual Reality Applications (VRAs) can be a reliable technique for assessing the level of impairment. However, most non-immersive VRAs use indirect measures to make inferences about visual attention and mnesic processes (e.g., time to task completion, error rate). Objectives: To examine whether the eye movement analysis through eye tracking (ET) can be a reliable method to probe more effectively where and how attention is deployed and how it is linked with visual working memory during comparative visual search tasks (CVSTs) in non-immersive VRAs. Methods: The eye movements of 50 healthy participants were continuously recorded while CVSTs, selected from a set of cognitive tasks in the Systemic Lisbon Battery (SLB). Then a VRA designed to assess of cognitive impairments were randomly presented. Results: The total fixation duration, the number of visits in the areas of interest and in the interstimulus space, along with the total execution time was significantly different as a function of the Mini Mental State Examination (MMSE) scores. Conclusions: The present study demonstrates that CVSTs in SLB, when combined with ET, can be a reliable and unobtrusive method for assessing cognitive abilities in healthy individuals, opening it to potential use in clinical samples. |
Arbitragem científica: | yes |
Acesso: | Acesso Aberto |
Aparece nas coleções: | CIS-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
pós-print.pdf | Pré-print | 2,12 MB | Adobe PDF | Ver/Abrir |
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.