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The influence of stimulus eccentricity on prosaccade outcomes in patients with Alzheimer's Disease dementia at an early stage and amnestic mild cognitive impairment       
Yazarlar (7)
Hatice Eraslan Boz
İzmir Demokrasi Üniversitesi, Türkiye
Koray Koçoğlu
Türkiye
Dr. Öğr. Üyesi Müge AKKOYUN Dr. Öğr. Üyesi Müge AKKOYUN
Işıl Yağmur Tüfekci
Merve Ekin
Pınar Özçelik
Bezm-İ Âlem Vakıf Üniversitesi, Türkiye
Gülden Akdal Halmagyı
Dokuz Eylül Üniversitesi, Türkiye
Devamını Göster
Özet
Prosaccade task is a widely used objective method to evaluate reflexive saccade and visual attention. The study aimed to investigate prosaccade stimulus eccentricity, compare prosaccade parameters in patients with Alzheimer's disease dementia (AD), amnestic mild cognitive impairment (aMCI), and neurotypical adults (NA), and examine the relationship between prosaccade and neuropsychological tests. Thirty patients with AD, 34 with aMCI, and 32 NA were included in the study. Eye movements were recorded with the EyeLink 1000 Plus in the prosaccade task, and this study evaluated cognitive function with comprehensive neuropsychological tests assessing attention, memory, executive function, visuospatial function, and language domains. The correct saccade rates of patients with AD were significantly lower than NA in the 5 and 10 stimulus eccentricities. Patients with AD had significantly longer latencies in the 10° stimulus eccentricity than those with aMCI and NA. Patients with aMCI did not differ in prosaccade performance compared to NA. Prosaccade parameters were significantly correlated with all cognitive domains. As the amplitude of the stimuli increased, the rate of correct saccades decreased, while the express saccade rate, latency, amplitude, and peak velocity increased. Our findings that correct saccade rates and latency may be distinguishing parameters of early AD are promising. This study also found that stimulus eccentricity affects prosaccade measures in AD, MCI, and NA.
Anahtar Kelimeler
Prosaccade | stimulus | eccentricity | alzheimer's disease | mild cognitive impairment
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı JOURNAL OF CLINICAL AND EXPERIMENTAL NEUROPSYCHOLOGY
Dergi ISSN 1380-3395 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 01-2022
Cilt No 44
Sayı 10
Sayfalar 17 / 729
Doi Numarası 10.1080/13803395.2023.2183937