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KMID : 0357220100220050109
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Journal of Korean Society Physical Therapy
2010 Volume.22 No. 5 p.109 ~ p.115
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Change of Fractional Anisotropy in the Left Inferior Frontal Area after Motor Learning
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Park Ji-Won
Nam Ki-Seok
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Abstract
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Purpose: This study was to delineate the structural change of neural pathway after sequential motor learning using diffusion tensor imaging (DTI).
Methods: The participants were 16 healthy subjects, which were divided by training (n=8) and control (n=8) group. The task for the training was the Serial Reaction Time Task (SRTT) which was designed by Superlab program. When the ’asterisk’ shows up in the 4 partition spaces on the monitor, the subject presses the correct response button as soon as possible. The training group participated in the training program of motor learning with SRTT composed of 24 digits pattern in one hour per daily through 10 days during 2 weeks.
Results: In the behavioral results the training group showed significant changes in the increase of response number and the reduction of response time than those of the control group. There was significant difference in the left inferior frontal area in the fractional anisotropy (FA) map of the training group in DTI analysis.
Conclusion: Motor sequential learning as like SRTT may be needed to the learning of language and visuospatial processing and may be induced for the experience-dependent structural plasticity during short period.
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KEYWORD
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Diffusion tensor imaging, Motor learning, Fractional anisotropy
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