TY - GEN
T1 - Visual Displacement Perception in Parkinson's Disease Analyzed Using a Computer-Generated Graphical Tool
AU - Bernardinis, Matthew
AU - Atashzar, Seyed Farokh
AU - Jog, Mandar
AU - Patel, Rajni V.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/10/26
Y1 - 2018/10/26
N2 - Parkinson's Disease (PD) is typically classified by the onset of motor impairments, however, non-motor symptoms are also present in all disease stages. Vision abnormalities contribute to the non-motor PD deficits, yet little research has studied how PD affects visual perceptions with no produced motor responses. This provides motivation for the current study which focuses on examining allocentric visual displacement perception - information used for object identification - in PD patients. To study this PD participants OFF and ON Levodopa therapy, and age-matched healthy control participants were tested. A modular graphics toolbox was implemented to carry out the perceptual testing. Individuals with PD were shown to have impairments in displacement perception of the larger tested magnitudes when both OFF and ON Levodopa compared to control participants, suggesting impairments in visual displacement processing pathways. These abnormalities could contribute to difficulties some PD patients have with visual recognition and visuospatial navigation. Furthermore, the study validated the graphical tool as a means of quantifying perceptual abilities that can be expanded to many perceptual modalities and paired with robotic devices.
AB - Parkinson's Disease (PD) is typically classified by the onset of motor impairments, however, non-motor symptoms are also present in all disease stages. Vision abnormalities contribute to the non-motor PD deficits, yet little research has studied how PD affects visual perceptions with no produced motor responses. This provides motivation for the current study which focuses on examining allocentric visual displacement perception - information used for object identification - in PD patients. To study this PD participants OFF and ON Levodopa therapy, and age-matched healthy control participants were tested. A modular graphics toolbox was implemented to carry out the perceptual testing. Individuals with PD were shown to have impairments in displacement perception of the larger tested magnitudes when both OFF and ON Levodopa compared to control participants, suggesting impairments in visual displacement processing pathways. These abnormalities could contribute to difficulties some PD patients have with visual recognition and visuospatial navigation. Furthermore, the study validated the graphical tool as a means of quantifying perceptual abilities that can be expanded to many perceptual modalities and paired with robotic devices.
KW - Aged
KW - Aged, 80 and over
KW - Case-Control Studies
KW - Computers
KW - Humans
KW - Levodopa/therapeutic use
KW - Middle Aged
KW - Parkinson Disease/complications
KW - Vision Disorders/diagnosis
KW - Vision Tests
KW - Vision, Ocular
KW - Visual Perception
UR - http://www.scopus.com/inward/record.url?scp=85056615588&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85056615588&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2018.8512754
DO - 10.1109/EMBC.2018.8512754
M3 - Conference contribution
C2 - 30440970
AN - SCOPUS:85056615588
VL - 2018
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
SP - 2748
EP - 2751
BT - 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018
Y2 - 18 July 2018 through 21 July 2018
ER -