@article{ref1,
title="Where do Parkinson's disease patients look while walking?",
journal="Movement disorders",
year="2022",
author="Vanegas-Arroyave, Nora and Chen, Denise F. and Lauro, Peter M. and Norato, Gina and Lungu, Codrin and Hallett, Mark",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="BACKGROUND: Parkinson's disease (PD) is associated with gait and visuomotor abnormalities, but it is not clear where PD patients look during ambulation. <br><br>OBJECTIVE: We sought to characterize the visual areas of interest explored by PD patients, with and without freezing of gait (FOG), compared to healthy volunteers (HVs). <br><br>METHODS: Using an eye-tracking device, we compared visual fixation patterns in 17 HVs and 18 PD patients, with and without FOG, during an ambulatory and a nonambulatory, computer-based task. <br><br>RESULTS: During ambulation, PD patients with FOG fixated more on proximal areas of the ground and less on the target destination. PD patients without FOG displayed a fixation pattern more similar to that of HVs. Similar patterns were observed during the nonambulatory, computer-based task. <br><br>CONCLUSIONS: Our findings suggest increased dependence on visual feedback from nearby areas in the environment in PD patients with FOG, even in the absence of motor demands. © 2022 International Parkinson and Movement Disorder Society.<p /> <p>Language: en</p>",
language="en",
issn="0885-3185",
doi="10.1002/mds.28917",
url="http://dx.doi.org/10.1002/mds.28917"
}