Supportive training system for sports skill acquisition based on electrical stimulation

Tatsuno, Sho; Hayakawa, Tetsuo; Ishikawa, Masatoshi

doi:10.1109/whc.2017.7989946

Cited by 18 publications

(3 citation statements)

References 11 publications

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“…There are many other studies to improve the reality of haptics [ 13 , 14 , 15 ]. Many studies use EMS to support people [ 16 , 17 ], such as teaching how to play musical instruments [ 18 ] and training [ 19 ]. Most HCI research about EMS with AR only treats the augmentation of vision.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Electric Muscle Stimulation Method for Haptic Augmented Reality

Ishimaru

Saga

2023

Sensors

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Currently, visual Augmented Reality (AR) technology is widespread among the public. Similarly, haptic AR technology is also widely practiced in the academic field. However, conventional haptic AR devices are not suitable for interacting with real objects. These devices are often held by the users, and they contact the real object via the devices. Thus, they prevent direct contact between the user and real objects. To solve this problem, we proposed employing Electrical Muscle Stimulation (EMS) technology. EMS technology does not interfere with the interaction between the user and the real object, and the user can wear the device. First, we examined proper stimulus waveforms for EMS, in addition to pulse waveforms. At the same time, we examined the appropriate frequency and pulse width. The waveforms that we used this time were a sawtooth wave, a reverse sawtooth wave, and a sine wave. Second, to clarify the characteristic of the force presented by the EMS, we measured the relationship between the input voltage and the force presented and obtained the point of subjective equality using the constant method. Subsequently, we presented the bump sensation using EMS to the participants and verified its effectiveness by comparing it with the existing methods.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Electric Muscle Stimulation Method for Haptic Augmented Reality

Ishimaru

Saga

2023

Sensors

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“…Another example of this technology is Cruise Control [2] which providing automated muscle stimuli, allowed a person to avoid obstacles on a predefined pathway with their eyes closed. Moreover, it has been applied to posture training when pitching a bowling ball by inducing muscular contraction in the limb [3].…”

Section: Introductionmentioning

confidence: 99%

Rattractor—Instant guidance of a rat into a virtual cage using the deep brain stimulation

et al. 2023

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We developed “Rattractor” (rat attractor), a system to apply electrical stimuli to the deep brain of a rat as it stays in a specified region or a virtual cage to demonstrate an instant electrophysiological feedback guidance for animals. Two wire electrodes were implanted in the brains of nine rats. The electrodes targeted the medial forebrain bundle (MFB), which is a part of the reward system in the deep brain. Following the recovery period, the rats were placed in a plain field where they could move freely, but wired to a stimulation circuit. An image sensor installed over the field detected the subject’s position, which triggered the stimulator such that the rat remained within the virtual cage. We conducted a behavioral experiment to evaluate the sojourn ratio of rats residing in the region. Thereafter, a histological analysis of the rat brain was performed to confirm the position of the stimulation sites in the brain. Seven rats survived the surgery and the recovery period without technical failures such as connector breaks. We observed that three of them tended to stay in the virtual cage during stimulation, and this effect was maintained for two weeks. Histological analysis revealed that the electrode tips were correctly placed in the MFB region of the rats. The other four subjects showed no apparent preference for the virtual cage. In these rats, we did not find electrode tips in the MFB, or could not determine their positions. Almost half of the rats tended to remain inside the virtual cage when position-related reward stimuli were triggered in the MFB region. Notably, our system did not require previous training or sequential interventions to affect the behavioral preferences of subjects. This process is similar to the situation in which sheep are chased by a shepherd dog in the desired direction.

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“…Another example of this technology is "Cruise Control" [2] which providing automated muscle stimuli, allowed a person to avoid obstacles on a predefined pathway with their eyes closed. Moreover, It has been applied for posture training when pitching a bowling ball by inducing muscular contraction in the limb [3].…”

Section: Introductionmentioning

confidence: 99%

Rattractor - Instant guidance of a rat into a virtual cage using a deep brain stimulation

Sudo

Fujiwara

Igarashi

et al. 2022

Preprint

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Objectives: To influence animal behaviors by applying electrical stimuli in the central nervous system, we developed "Rattractor" (rat attractor), a system for electrical stimuli application in the rat brain, when the subject stays in a specified region or a virtual cage. Our results showed that our closed-loop system facilitated a self-organized control of rat locomotion to stay in the virtual cage. Approach: Nine rats had two wire electrodes implanted in the deep brain. The electrodes targeted the medial forebrain bundle (MFB), a part of the reward system in the deep brain. Following a recovery period, rats were placed on a plain field where they could move freely but wired to a stimulation circuit. An image sensor installed over the field detected the subject position which accordingly triggered the stimulator, so that rat stayed within the virtual cage. We conducted a behavioral experiment to evaluate a sojourn ratio that the rat resided in the region. Thereafter, histological analysis of the rat's brains was performed to confirm the position of the stimulated sites in the brain. Results: Seven rats survived the surgery and the recovering period without technical failures such as connector break. Then, we observed that three of them tended to stay in the virtual cage during stimulation, an effect maintained for two weeks. Histological analysis showed that the electrode tips were correctly placed in the MFB region of these rats. The other four subjects showed no apparent preference to the virtual cage. In these rats, we did not find the electrode tips in the MFB or could not determine its position. Significance: Almost half of the rats showed a tendency to stay inside the virtual cage when position-related reward stimuli were triggered in the MFB region in real time, as shown by optical observation thorough the image sensor. The experimenter only needed setting the region of the virtual cage, not requiring sequential commands for the rat. Notably, our system neither required previous training nor sequential intervention to affect the behavioral preferences of the subjects. This process is similar to the situation wherein sheep chased by a shepherd dog in the desired direcion indicated by the dog.

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Supportive training system for sports skill acquisition based on electrical stimulation

Cited by 18 publications

References 11 publications

Evaluation of Electric Muscle Stimulation Method for Haptic Augmented Reality

Evaluation of Electric Muscle Stimulation Method for Haptic Augmented Reality

Rattractor—Instant guidance of a rat into a virtual cage using the deep brain stimulation

Rattractor - Instant guidance of a rat into a virtual cage using a deep brain stimulation

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