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Precise Measurements of Short-Term Memory Function about Periodic Motions

Kyota Aoki, Yuki Yamada, and Hisanori Hotta
Graduate School of Engineering, Utsunomiya University, Utsunomiya, Japan

Abstract—There are peg-board test and tap synchronization test as a method for measuring the motion control function. These tests measure only the result of motion, and do not the process. By measuring the whole process from the beginning to the end of a test, it is possible to obtain more detailed data. In evaluating the short-term memory function of a person’s motion, the through measurement of a motion processes enables to measure the precise performance of the memory function. This paper proposes a new method to measure the performance of a short-term memory function about periodic motion of both hands. The new proposed method uses the visual synchronization task. In the task, the method requests a subject to flip the palms of both hands synchronizing the displayed motion and continue to flip after the displayed motion disappeared. The method measures the poses of both perms through the task. From the measurements in the process of this task, the method evaluates the short-term memory function of the subject. This paper proposes the task, its’ measuring method, implementation and experiments. The new task and the measuring method enable to measure the precise movements easily and shortly. The proposed method is safe, because there is no need to attach the device to a subject nor to make gross motions. This paper presents the experiments and the evaluation of the short-term memory function of the movements from objective measurement of cooperative movement in both hands.

Index Terms—motor function, short-term memory, measurement

Cite: Kyota Aoki, Yuki Yamada, and Hisanori Hotta, "Precise Measurements of Short-Term Memory Function about Periodic Motions," Journal of Life Sciences and Technologies, vol. 4, no. 1, pp. 30-35, June 2016. doi: 10.18178/jolst.4.1.30-35
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