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The Effect of Visual Cue Deprivation for the Head Alignment on Unilateral Neglect Patient: Case Report
J Korean Soc Phys Med 2013;8(3):337-342
Published online August 31, 2013;  https://doi.org/10.13066/kspm.2013.8.3.337
© 2013 Korean Society of Physical Medicine.

Jong-Sung Chang, PT, PhD, Jung-Mi Park, PT, MS, Mi-Young Lee, PT, PhD

Department of Physical Therapy, Honam University, Department of Physical Therapy, Yeungnam University Medical Center, Department of Physical Therapy, Daegu Haany University
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
PURPOSE: The Unilateral neglect is characterized by difficulty shifting attention to the side of space opposite the brain lesion and frequently reducing use of contralesional extremities. This study was to identify whether the visual deprivation was responsible for head position on unilateral neglect patient after stroke. METHODS: A patient with left middle cerebral artery infarction participated in the study. We assessed neglect using line bisection and star cancellation test. Patient was instructed to maintain correct alignment of trunk and head in a sit position. We evaluated degree of head lateral tilting and rotation. Then, patient was blocked visual input. Also, we evaluated head position in the same way. RESULTS: He scored 3 points in the line bisection test and 9 points star cancellation test. In postural evaluation, he had deviated posture such as lateral head tilting and rotation. After visual cue deprivation, patient showed different head position which was decreased degree of head tilting and rotation. CONCLUSION: For vertical body orientation, it was used multiple sensory references including the vestibular, somatosensory, and visual system. This finding suggested that abnormal posture of neglect patient could be related to the visual input. It has important clinical implications in terms of understanding the neglect.
Keywords : Neglect, Visual cue deprivation, Body orientation, Bias


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