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KMID : 1003120180100010001
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Journal of Korean Society of Neurocognitive Rehabilitation
2018 Volume.10 No. 1 p.1 ~ p.6
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Change of Electroencephalogram According to Awareness of Graphic Shape and Imagery of Graphic Shape With Adults
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Lee Jeong-Weon
Ahn Si-Nae
Song Hyun-Jin
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Abstract
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Objective: This experiment compared the brain activity when sensing shapes through the sense of touch while blocking vision and the brain activity when visualizing that shape in one's mind.
Methods: Thirty healthy adults participated. We measured the participants' electroencephalogram two times: first when we manually drew geometric patterns on their major hand, the right hand, and secondly when they visualized the patterns in their head after the stimuli. Thirty healthy adults participated. We measured the participants' electroencephalogram two times: first when we manually drew geometric patterns on their major hand, the right hand, and secondly when they visualized the patterns in their head after the stimuli. Statistically, we used descriptive statistics and paired t test of the matching sample.
Results: We discovered that the sensory motor rhythm increased when the participants visualized the geometric patterns in their head compared to when they sensed the patterns through their hands. There was a substantial increase especially in the frontal area, parietal lobe, temporal lobe, and occipital lobe. However, there was barely any difference between the two conditions in the right parietal lobe and the right occipital lobe.
Conclusion: This experiment proved that when we perceive shapes and visualize them, our electroencephalogram are activated, and especially when we visualize, electroencephalogram activation was more prominent
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KEYWORD
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Adults, Electroencephalogram, Geometric
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