• Title/Summary/Keyword: visual neglect

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The Effect of Visual Cue Deprivation for the Head Alignment on Unilateral Neglect Patient: Case Report (편측 무시 환자에서 시각 정보 차단이 머리 위치 정렬에 미치는 영향: 사례 연구)

  • Chang, Jong-Sung;Park, Jung-Mi;Lee, Mi-Young
    • Journal of the Korean Society of Physical Medicine
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    • v.8 no.3
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    • pp.337-342
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    • 2013
  • 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.

Effect of Visual neglect for hemiplegia to motor recovery (시각무시가 편마비 환자의 운동 기능회복에 미치는 영향)

  • Kim, Yong-Kwon
    • Journal of Korean Physical Therapy Science
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    • v.10 no.1
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    • pp.18-29
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    • 2003
  • The purpose of this study by examine the effect of visual neglect on hemiplegia motor recovery are showing trouble which can be raised by visual neglect and helping the patient's ADL and functional recovering. Among the patients who are being taken physical therapy in many other hospitals in Busan From February 1st 2002 to august 31st, we chose 20 patients as control group who did not have symptoms of visual neglect and 20 other patients who did have as case group. We used Albert's test and line bisection as visual neglect test, and MAS as motor recovery. The average age of the patient group is 51.55 and that of control is 44.9. The men's rate is higher than women' s in both groups. Although the rate of left hemiplegia is higher than right hemiplegia in case group, that of right hemiplegia is higher than left hemiplegia in control group. There is much lesion site of basal ganglia in case group. There is the most amount of transformation of MAS when visual neglect is shorter than 1.5centimeter. Each change of MAS point before and after therapy in case group and control group is revealed $6.5{\pm}4.37$ and $12.5{\pm}5.95$.

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Electronic Pen-based Unilateral Visual Neglect Assessment and Rehabilitation System (전자펜 기반 편측시각무시(UVN) 환자 검사 및 재활치료 시스템)

  • Kim, Joonkyo;Jee, Haemi;Park, Jaehyun
    • Journal of Institute of Control, Robotics and Systems
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    • v.20 no.6
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    • pp.647-650
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    • 2014
  • Assessment and rehabilitation of patients with unilateral visual neglect has been one of the fields that require assistive technology. Paper-and-pencil tests, including the LBT (Line Bisection Test), have been one of the most commonly used visual neglect assessment methods used in a clinical setting. The key motivation of this study was to establish a computer-based real-time assessment system for the hemi-neglect patients without altering the conventional paper-and-pencil based user tools. A digital penbased assessment and rehabilitation system, the ePen System, could eliminate the manual assessment time while maintaining measurement accuracy. As a result, the proposed system may assist rehabilitation specialists to assess and diagnose patients with unilateral visual neglect. This system can be applied to a range assessment and rehabilitation modalities based on a pen and paper. It can also be applied to various patients such as those with Parkinson's disease, stroke sufferers, or those who have experienced different forms of brain lesions.

The Effects of a Mental Image Drawing on Left Neglect: a Case Study (심상그리기가 좌편 무시현상에 미치는 영향: 사례연구)

  • Kim, Ha-Kyung;Hwang, Young-Jin;Jeong, Ok-Ran
    • Speech Sciences
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    • v.12 no.3
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    • pp.91-102
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    • 2005
  • This study investigated to the effects of a mental image drawing in RHD patients with left neglect. Three subjects participated in this study. All subjects were right handed and native speaker of korean. In task 1, the patients were presented with visual stimulus card directly above the response sheet and were asked to draw the picture. In task 2, they were presented with items auditorily and asked to draw the picture(mental image drawing). In all experimental conditions, there was no response time limit. The results showed that the subjects showed left neglect leaving some space on the left side in task 1. And the picture was drawn the left side from the right in direction. However, the neglect disappeared in task 2. And the picture was drawn the right side from the left in direction. The results of the present study suggested that a mental image drawing technique can be effective in treating individuals who exhibit left neglect. Also, the picture direction showed that the korean normality was same.

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Quantitative Evaluation Method of Unilateral Neglect based on K-CBS using Virtual Reality (가상현실을 이용한 K-CBS 기반의 편측무시 정량적 평가 방법)

  • Moon, Ho-Sang;Chung, Sung-Taek
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.20 no.1
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    • pp.141-148
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    • 2020
  • Unilateral neglect is associated with stroke, a neurological disorder caused by cerebrovascular injury, and is a symptom of not recognizing or responding to the opposite stimulus of the cerebral hemisphere, mainly in the right cerebral hemisphere injury. In this paper, we implemented contents using Virtual Reality based on 10 items and contents of Korean Catherine Bergego Scale(K-CBS), which is used as a behavioral evaluation scale for unilateral neglect. Implemented contents can evaluate body disregard, motility disregard, visual and spatial disregard, auditory attention, etc., which are symptoms of unilateral neglected patients, and can confirmed progression of disease quantitatively by measuring time and rotation angle of head during visual recognition. This method is expected to be useful for rehabilitation training using convenient unilateral neglect diagnosis and its applied contents.

Effect of Combined Therapy of Robot and Low-Frequency Repetitive Transcranial Magnetic Stimulation on Hemispatial Neglect in Stroke Patients

  • Kim, Sang Beom;Lee, Kyeong Woo;Lee, Jong Hwa;Lee, Sook Joung;Park, Jin Gee;Lee, Joung Bok
    • Annals of Rehabilitation Medicine
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    • v.42 no.6
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    • pp.788-797
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    • 2018
  • Objective To investigate the effect of upper limb rehabilitation combining robot with low-frequency repetitive transcranial magnetic stimulation (rTMS) on unilateral spatial neglect in stroke patients. Methods Patients who had hemispatial neglect after right hemisphere stroke were randomly divided into rTMS only group, robot only group, and combined group. All groups received conventional neglect therapy and additional treatment for each group. rTMS group received rTMS therapy. Robot group received robot therapy, while combined group received both therapies. The effect of therapy was assessed with Motor-Free Visual Perception Test-3 (MVPT-3), line bisection test, star cancellation test, Catherine Bergego Scale (CBS), Mini-Mental State Examination (MMSE), and the Korean version of Modified Barthel Index (K-MBI). These measurements were evaluated before and after treatment. Results For each group, 10 patients were recruited. There were no significant differences in baseline characteristics or initial values among the three groups. Two weeks after the therapy, all groups showed significant improvement in MVPT-3, line bisection test, star cancellation test, CBS, MMSE, and K-MBI. However, changes in measurements showed no significant differences among groups. Conclusion Treatment effect of the combined therapy of robotic therapy and low-frequency rTMS therapy for hemispatial neglect was not statistically different from that of each single treatment. Results of this study did not prove the superiority of any of the three treatments. Further study with large number of patients is needed to evaluate the superiority of these treatments.

Development of Measurement Method and Contents for Unilateral Neglect using Eye-tracking Technique (시선추적기법을 적용한 편측무시 측정 방법 및 개선 콘텐츠 개발)

  • Choi, Junghee;Shin, Sung-Wook;Moon, Ho-Sang;Goo, Sejin;Chung, Sung-Taek
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.18 no.5
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    • pp.187-195
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    • 2018
  • In this study, using real-time gaze tracking and head tracking method, we intended to quantitatively evaluate the deviation between the patient's head and gaze direction while minimizing inspection errors due to apraxia of conventional paper-based examination respectively. As a result, we developed a software that can quantitatively measure gaze and head movement information, and computerized the line bisection and star cancelation test, which are generally used as conventional paper test. In addition, for the rehabilitation training, contents corresponding to the visual technology of Warren's visual hierarchical model lower level are implemented and can be performed repetitively and independently. This allows the patient to actively participate in rehabilitation and quantitatively compare the degree of improvement.

The Effect of Light Stimulation on the Reduction of Unilateral Neglect of Stroke Patients: Single Subject Research Design (뇌졸중 환자에게 불빛 자극이 편측무시 감소에 미치는 영향: 단일 사례 연구)

  • Lee, Ho-Seung
    • The Journal of Korean society of community based occupational therapy
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    • v.2 no.2
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    • pp.61-69
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    • 2012
  • Objective : The purpose of this study was to investigate the effect of left visual stimuli for reducing the severity of unilateral neglect. Method : This research used a reversal design(ABAB) of single case study. The subject was a 60-year-old male patient who had left unilateral neglect. Remedial approach is more valuable method than compensatory approach in term of reducing the unilateral neglect. One of the method of remedial approach is controlled sensory stimulation. Result : I performed the line bisection test before and after the stimulation, and while doing that, put blinking lights to the patient from the left side. The average errors in the line bisection test decreased in B B', the intervention period, compared with A A'. The MVPT left response behavior score increased from 13 to 18. Conclusion : This shows that the light stimulation is effective in the reduction of unilateral neglect.

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The Effect of Pseudoneglect on Visual Perception and Driving : Using a Driving Simulator (가성무시가 시지각과 운전수행에 미치는 영향 : 드라이빙 시뮬레이터를 이용하여)

  • Jang, Sung-Lee;Ku, Bon-Dae;Na, Duk-Lyul;Lee, Jang-Han
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.1233-1238
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    • 2009
  • This study's aim was to confirm that pseudoneglect affects visual attention through car laterality, using a driving simulator with either bisection or quadrisection strategies being applied to road usage. On the pencil and paper tests, the left quadrisection and bisection marks deviated significantly to the left. While driving, the car was significantly lateralized to the right of the lane regardless of conditions. However, in terms of relative laterality, the biggest left laterality occurred on roads 1(bisection), while the smallest left laterality occurred on roads 2 (right quadrisection). Thus, the effect of pseudoneglect was demonstrated in both the pencil and paper tests and the driving simulation task. Also, roads 2 and 4, which were driven on the right side of the lane, showed a tendency for drivers to avoid the centerline, as this was the expected cause of right laterality. This study demonstrated that the pseudoneglect phenomenon can occur in a routine driving task.

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A study of the sixteenth century Mannerism Costume and Unthinkable fashion (16C 매너리즘시대 복식과 20C 엽기패션에 관한 연구)

  • 김영란
    • Journal of the Korea Fashion and Costume Design Association
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    • v.4 no.2
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    • pp.163-172
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    • 2002
  • There have been many unbalanced attempts to break the rules with Renaissance movement which connects with the past in the current art. And From the latter half of Twenty century to the early half of twenty one century, the common sense of fashion is turned over by(unthinkable fashion). To analyze current apparence of fashion, this research make a comparison of fashion condition between the sixteenth century and twenty century fashion, Three analysis methods is introduced. First of all, this paper make research of original language of mannerism and unthinkable apparence. Second, appearances of mannerism fashion and unthinkable fashion which are taken from reference books and pictures. Third, Gathering methods which express own style between two periods in the end part of research. As a result, Although Mannerism isn't practical for the visual and new pleasure, and neglect humanism of Renaissance, It is a tendency which is willing to change the flow of prevailing mode, and to reflect asking of people each periods. Mannerism and unthinkable fashion is apparence of society to refresh own feeling. And then, Mannerism and unthinkable fashion is a new challenge to escape from fixed thought.

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