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KMID : 1003120120040010011
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Journal of Korean Society of Neurocognitive Rehabilitation
2012 Volume.4 No. 1 p.11 ~ p.19
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Comparing Tactile Perception Ability between Blind and Normal
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Jeong Won-Mee
Han Joo-Hee
Yang Sung-Tae
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Abstract
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Objective: Trying to provide the basic materials about tactile perception training by figuring out if tactile perception is affected by the existence of vision after comparing tactile perception ability between blind and normal.
Methods: Conducted this experiment on 9 blind who are registered in association of blind, and 7 normal in the age of 70s and 9 normal people in the age of 20s - total of 25 people. For the preliminary examination, I measured the cognitive function to select the subject. For the tactile perception ability, two point discrimination, tactile discrimination and texture discrimination were measured. SPSS Ver. 18.0 was used for the static analysis; ANOVA and LSD post analysis were used to compare tactile perception ability and to make a descriptive statistics.
Results: For the two point discrimination, blind in 70s resulted to have better perception than normal in 70s and 20s(p<.05). For the tactile discrimination in ulnar, it was found out that the blind in 70s perceive better than the normal of 70s but worse than the normal in 20s(p<.05). Also, normal in 20s had better perception than normal in 70s. In radius, there was no difference between blind and normal in 70s(p>.05), but worse than normal in 20s(p<.05). Also, the perception of normal in 20s is better than the perception normal in 70s(p<.05). For the texture discrimination, there was no difference in perceiving the front side of leather(p>.05), but blind in 70s perceive the back of leather better than the normal in the 20s.
Conclusion: There was difference in tactile perception ability between normal and blind. Thus, when tactile perceiving training, I will provide the basic materials about task application depending on the existence of vision
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KEYWORD
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Blind, Tactile perception, Texture discrimination, Two point discrimination, Vision
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