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KMID : 1003120110030010001
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Journal of Korean Society of Neurocognitive Rehabilitation
2011 Volume.3 No. 1 p.1 ~ p.10
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Comparison of Spacious Cognition by the Judgement of Line Orientation Between Healthy Persons and Stroke Patients
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Kim Young-Sil
Shin Hyeon-Hui
Hwang Hye-Jung
Lee Jeong-Weon
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Abstract
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Objective: The purpose of this study is to compare the line orientation ability of normal participants and stroke patients. To find this, a modified JLOT, consisting of the different length of the line, was used. It also investigated the ability of line orientation between right hemisphere patients without neglect and left hemisphere patients.
Methods: The number of subjects of this study were 67, including 29 right-dominant handed healthy people and 38 stroke patients(20 right-hemiplegia and 18 left-hemiplegia). The study modified Benton et al.(1983)`s Judgement of the Line Orientation Test(JLOT) and constructed 6 practice problems and 24 examination problems, comparing reaction time and total score(the number of correct score).
Results : The total score of health people was 2.54 higher than that of stroke patients(p=.026), and average reaction time of patients increased 6.18 seconds, demonstrating a meaningful difference in terms of statistics(p=.000). Also, the reaction time and total score were meaningful in healthy group, right hemiplegia group, and left hemiplegia group in terms of statistics. Considering the result of multiple comparison, the total score of healthy group and left-hemiplegia group appeared to a mean difference of 3.68(p=.020). Also, the reaction time of healthy group and right-hemiplegia group appeared to a mean difference of 7.22(p=.000), and that of healthy group and left-hemiplegia group appeared to a mean difference of 4.22(p=.046) The percentage of correct scores according to the angle test in which subjects should infer angle of line appeared to higher when the degree of angle is close to 90-degree and 180-degree than in other angle.
Conclusion: Ability to judge line orientation of normal participants is more accurate than patients, and reaction time is shorter. Also, the total score of line angle is a growing tendency toward horizontality and verticality.
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KEYWORD
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Line orientation, Reaction time, Stroke, Visuo-spatial
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