Qualitative Analysis of Concentration Level in Throwing Using Simple Brain-Wave Sensor

Qualitative Analysis of Concentration Level in Throwing Using Simple Brain-Wave Sensor

Hironori Hiraishi (Ashikaga Institute of Technology, Ashikaga, Tochigi, Japan)
DOI: 10.4018/IJCINI.2017070102
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Abstract

This paper describes a qualitative analysis of the concentration level required to throw an object at a specific target, such as the free throw in basketball or darts games, using a simple brain-wave sensor. The qualitative analysis does not focus on quantity, but on qualitative changes, such as increasing, decreasing, or stabilizing. The analysis allows us to clarify the essential features of subjects where standards are individually different, such as brain waves or concentration levels. Therefore, the author analyzes the differences between experts and novices while throwing. Furthermore, the author analyzes the influence of pre-performance routines (PPRs), which involve performing certain determined motions before throwing, and are often executed in sports for the purpose of removing stress or raising concentration. The analysis reveals a concentration-stabilizing phenomenon where the concentration level becomes stabilized prior to throwing. The author also finds that the phenomenon appears more conspicuously in the case of experts and PPRs.
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2. The Simple Brain-Wave Sensor

We adopted the B3 Band shown in Figure 1, which is one of the simple electroencephalographs produced by B-Bridge International, Inc. The size is 54 mm (L) × 25 mm (W) × 17 mm (H), and the weight is approximately 100 g. The band is so small that it is not uncomfortable to wear during the exercise. The right side of Figure 1 shows an example of a user wearing the B3 Band. There is an electrode on the left ear hook, and two other electrodes are attached to the forehead of the band. The brain-waves data are measured through those electrodes and sent to tablets or PCs by Bluetooth communication. We can check the data in real time on a tablet using the attached software. We can also develop applications using PC development kits.

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