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논문 기본 정보

자료유형
학술저널
저자정보
Yoon Kyung Cho (Ewha Womans University) Chin Su Koh (Yonsei University College of Medicine) Youjin Lee (Ewha Womans University) Minkyung Park (Yonsei University College of Medicine) Tae Jun Kim (Yonsei University College of Medicine) Hyun Ho Jung (Yonsei University College of Medicine) Jin Woo Chang (Yonsei University College of Medicine) Sang Beom Jun (Ewha Womans University)
저널정보
대한의용생체공학회 Biomedical Engineering Letters (BMEL) Biomedical Engineering Letters (BMEL) Vol.13 No.1
발행연도
2023.2
수록면
85 - 95 (11page)
DOI
https://doi.org/10.1007/s13534-022-00256-6

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Brain–machine interface (BMI) provides an alternative route for controlling an external device with one’s intention. For individuals with motor-related disability, the BMI technologies can be used to replace or restore motor functions. Therefore, BMIs for movement restoration generally decode the neural activity from the motor-related brain regions. In this study, however, we designed a BMI system that uses sensory-related neural signals for BMI combined with electrical stimulation for reward. Four-channel electrocorticographic (ECoG) signals were recorded from the whisker-related somatosensory cortex of rats and converted to extract the BMI signals to control the one-dimensional movement of a dot on the screen. At the same time, we used operant conditioning with electrical stimulation on medial forebrain bundle (MFB), which provides a virtual reward to motivate the rat to move the dot towards the desired center region. The BMI task training was performed for 7 days with ECoG recording and MFB stimulation. Animals successfully learned to move the dot location to the desired position using S1BF neural activity. This study successfully demonstrated that it is feasible to utilize the neural signals from the whisker somatosensory cortex for BMI system. In addition, the MFB electrical stimulation is effective for rats to learn the behavioral task for BMI.

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