Motor timing and more--additional options using advanced registration and evaluation of tapping data. |
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Authors: | Cong Khac Dung Gerhard Staude Werner Wolf |
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Institution: | Institut für Mathematik und Datenverarbeitung, Fakult?t für Elektrotechnik und Informationstechnik, Universit?t der Bundeswehr München, Neubiberg, Germany. Dung.Congkhac@unibw-muenchen.de |
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Abstract: | Motor coordination in multi-tasking situations is relevant to everyday life, since numerous daily activities require the performance of more than one task simultaneously. Investigations into this topic often use dual-task experiments like bimanual tapping, with different instructions for the right and left hands, such as to tap repetitively with the right index finger at a given frequency and to concurrently execute a single tap in response to a go signal with the left index finger. A basic experimental set-up for tapping consists of only a pace signal generator and ground contact sensors such as micro switches for observation of motor action. Evaluation of the binary on-off signals provided by these switches is quite simple, but the amount of information obtained is also limited. This paper presents a novel experimental design for tapping experiments with high-resolution recording of the complete time course of continuous finger movements. The evaluation procedures required for biomechanical and EMG data are described. The latter are based on sophisticated maximum-likelihood techniques, which is an example of progress in research using advanced biosignal processing. |
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