Impact of Cognitive Demand on Eye Movement Pattern in Patients with Alzheimer's Disease

Autor(es)

de Arruda Camargo, Marina von Zuben ; Pais, Marcos Vasconcelos ; Ribeiro Bellan, Ariella Fornachari ; Tahira, Ana Carolina ; dos Santos, Bernardo ; Fidalgo Garcez Sant'Ana, Livea Carla ; Radanovic, Marcia ; Forlenza, Orestes Vicente

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ALZHEIMER'S DISEASE; v. 90, n. 1, p. 11-pg., 2022-01-01.

Resumo

Background: Eye-movement behavior has been used as a reliable tool to identify cognitive and behavioral patterns in individuals with different neuropsychiatric disorders including Alzheimer's disease (AD). Most studies in the field have been dedicated to evaluating eye-movement behavior during cognitive tasks in different protocols using multiple parameters. Objective: We aimed to evaluate the differences of eye-movement behavior in healthy subjects, subjects with mild cognitive impairment (MCI), and those with AD in a simple color task with and without cognitive demand. Methods: 91 subjects: 18 AD, 47 MCI, and 26 healthy controls had their oculomotor parameters assessed during baseline (no cognitive demand involved) and during a simple computational color memory task using an eye-tracker. Results: Baseline showed statistically different and heterogeneous results between normal cognition and MCI groups. Familiarization phase of the task could not discriminate between groups in any of the analyzed parameters. AD subjects made longer fixations and visits on distractors, and more frequent fixations and visits on the target areas than other groups during the response phase. Conclusion: Eye-tracking time-related parameters differentiate AD subjects from other groups under cognitive demand even in a simple color memory task. (AU)

• Processo FAPESP: 17/12339-3 - Alterações nas funções executivas e a progressão para a doença de Alzheimer: utilização de métodos computacionais para a análise de dados do movimento ocular
• Beneficiário: Marta Luísa Gonçalves de Freitas Pereira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 13/23135-9 - Detecção precoce de alterações cognitivas preditivas da Doença de Alzheimer por meio da análise da movimentação ocular
• Beneficiário: Orestes Vicente Forlenza
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/19632-2 - O funcionamento executivo como indicador de conversão para a Doença de Alzheimer: contributo da análise do movimento ocular
• Beneficiário: Marta Luísa Gonçalves de Freitas Pereira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/20913-3 - Determinação de fosfolípides plasmáticos nas doenças neuropsiquiátricas
• Beneficiário: Alana Caroline Costa
• Modalidade de apoio: Bolsas no Brasil - Mestrado