People with Parkinson’s Disease Are Able to Couple Eye Movements and Postural Sway to Improve Stability

Author:

Barbieri Fabio Augusto1ORCID,Polastri Paula Favaro2ORCID,Barela José Angelo3ORCID,Bonnet Cédrick T.4ORCID,Brito Matheus Belizario2,Rodrigues Sergio Tosi2ORCID

Affiliation:

1. Human Movement Research Laboratory (MOVI-LAB), Department of Physical Education, São Paulo State University (UNESP), Bauru 17033-360, SP, Brazil

2. Laboratory of Information, Vision and Action (LIVIA), Department of Physical Education, São Paulo State University (UNESP), Bauru 17033-360, SP, Brazil

3. Institute of Biosciences, Department of Physical Education, São Paulo State University (UNESP), Rio Claro 13506-900, SP, Brazil

4. UMR 9193-SCALab-Sciences Cognitives et Sciences Affectives, National Center for the Scientific Research (CNRS), Univ. Lille, F-59000 Lille, France

Abstract

Considering that people with Parkinson’s disease (PD) experience challenges in the control of both balance and eye movements, this study investigated the effects of saccadic eye movements on body sway in people with PD in two bases of support positions (side-by-side and tandem stances). Ten people with PD and 11 healthy individuals performed (a) fixation; (b) horizontal saccadic eye movements to the right and left; and (c) vertical saccadic eye movements up and down. The protocol for each postural task consisted of one block of six trials, making a total of 12 trials. Body sway and gaze parameters were measured during the trials. In both people with PD and healthy individuals, anterior–posterior body sway was significantly reduced in horizontal saccadic eye movements in contrast to fixation, regardless of the body position (side-by-side and tandem stances). Furthermore, vertical saccadic eye movements increased the area of sway in contrast to horizontal ones (and not to fixation) in people with PD. In addition, people with PD showed a higher number of fixations in all experimental conditions, without changes in the mean duration of fixations in both body positions. In conclusion, individuals with PD can improve body sway by coupling eye movements and postural sway when performing horizontal saccadic eye movements but not when performing vertical saccadic eye movements.

Funder

São Paulo Research Foundation

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior -Brasil

National Council for Scientific and Technological Development

CAPES-COFECUB

Publisher

MDPI AG

Reference43 articles.

1. Postural Stabilization of Visually Guided Eye Movements;Stoffregen;Ecol. Psychol.,2006

2. Ocular versus extraocular control of posture and equilibrium;Guerraz;Neurophysiol. Clin. Neurophysiol.,2008

3. Balance Dysfunction in Parkinson’s Disease: The Role of Posturography in Developing a Rehabilitation Program;Ferrazzoli;Parkinson’s Dis.,2015

4. Distinct functional properties of the vertical and horizontal saccadic network in Health and Parkinson’s disease: An eye-tracking and fMRI study;Lemos;Brain Res.,2016

5. Direction-specific postural instability in subjects with Parkinson’s disease;Horak;Exp. Neurol.,2005

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3