Quantitative Eye Gaze and Movement Differences in Visuomotor Adaptations to Varying Task Demands Among Upper-Extremity Prosthesis Users

Autor: Aïda M. Valevicius, Albert H. Vette, Quinn A. Boser, Hiroki Tanikawa, Patrick M. Pilarski, Craig S. Chapman, Jacqueline S. Hebert, Ewen B. Lavoie
Rok vydání: 2019
Předmět:
Adult
Male
030506 rehabilitation
medicine.medical_specialty
Adolescent
Eye Movements
medicine.medical_treatment
Artificial Limbs
Fixation
Ocular
Prosthesis
behavioral disciplines and activities
Amputation
Surgical
Task (project management)
Alberta
Upper Extremity
03 medical and health sciences
Young Adult
0302 clinical medicine
Physical medicine and rehabilitation
Task Performance and Analysis
medicine
Physical Medicine and Rehabilitation
Humans
Range of Motion
Articular
Eye Movement Measurements
Original Investigation
Research
Eye movement
General Medicine
Middle Aged
Adaptation
Physiological
Online Only
Cross-Sectional Studies
Amputation
Case-Control Studies
Fixation (visual)
Arm
Eye tracking
Female
0305 other medical science
Psychology
Range of motion
030217 neurology & neurosurgery
psychological phenomena and processes
Psychomotor Performance
Zdroj: JAMA Network Open
ISSN: 2574-3805
Popis: Key Points Question Is task selection a factor in visuomotor adaptation strategies and therefore a complication in measuring outcomes for users of upper-extremity prostheses? Findings In this cross-sectional study of 8 prosthesis users and 16 participants with normal arm function, between tasks, prosthesis users changed their visuomotor compensatory strategies, and these strategies were different from those used by participants with normal arm function when performing the tasks. However, for a given task, prosthesis users demonstrated similar compensations despite varying amputation levels and technology. Meaning This study suggests that prosthesis users have inherently different ways of functioning for object interaction tasks compared with individuals with normal arm function, and compensation strategies appear to vary depending on the task.
This cross-sectional study examines whether task selection is a factor in visuomotor adaptation strategies to perform goal-directed object movement tasks in individuals with an upper-limb prosthesis compared with individuals with normal arm function.
Importance New treatments for upper-limb amputation aim to improve movement quality and reduce visual attention to the prosthesis. However, evaluation is limited by a lack of understanding of the essential features of human-prosthesis behavior and by an absence of consistent task protocols. Objective To evaluate whether task selection is a factor in visuomotor adaptations by prosthesis users to accomplish 2 tasks easily performed by individuals with normal arm function. Design, Setting, and Participants This cross-sectional study was conducted in a single research center at the University of Alberta, Edmonton, Alberta, Canada. Upper-extremity prosthesis users were recruited from January 1, 2016, through December 31, 2016, and individuals with normal arm function were recruited from October 1, 2015, through November 30, 2015. Eight prosthesis users and 16 participants with normal arm function were asked to perform 2 goal-directed tasks with synchronized motion capture and eye tracking. Data analysis was performed from December 3, 2018, to April 15, 2019. Main Outcome and Measures Movement time, eye fixation, and range of motion of the upper body during 2 object transfer tasks (cup and box) were the main outcomes. Results A convenience sample comprised 8 male prosthesis users with acquired amputation (mean [range] age, 45 [30-64] years), along with 16 participants with normal arm function (8 [50%] of whom were men; mean [range] age, 26 [18-43] years; mean [range] height, 172.3 [158.0-186.0] cm; all right handed). Prosthesis users spent a disproportionately prolonged mean (SD) time in grasp and release phases when handling the cups (grasp: 2.0 [2.3] seconds vs 0.9 [0.8] seconds; P
Databáze: OpenAIRE
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