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http://dx.doi.org/10.15207/JKCS.2019.10.5.103

A Convergent Approach to Gain a Better Understanding of Alzheimer's Disease: Stereoscopic Vision  

Kim, Nam-Gyoon (Department of Psychology, Keimyung University)
Lee, Ho-Won (Department of Neurology, School of Medicine, Kyungpook National University)
Publication Information
Journal of the Korea Convergence Society / v.10, no.5, 2019 , pp. 103-110 More about this Journal
Abstract
The present study investigated the effects of AD on stereoscopic vision. Sixty participants (20 AD patients, 20 mild cognitive impairment patients, 20 healthy elderly controls) participated in the study. Two cubes, one on the left and the other on the right of the center of the monitor, appeared at varying distances from the observer with their relative distances controlled in two disparity conditions (absolute vs relative disparity) combined with two disparity directions (crossed vs uncrossed disparity). Participants identified the object that appeared closer to them. Results demonstrated comparable performance with all three groups performing accurately, suggesting that the effect of AD on stereopsis is negligible. Discussion focused on brain pathology affected by AD involving high level visual processing.
Keywords
Alzheimer's disease; Aging; Stereopsis; Binocular disparity; High level visual processing;
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