바이오및뇌공학과 뇌인지 공학 프로그램

세미나

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Abstract:

A better understanding neural population function would be an important advance in systems neuroscience. Neurons encode many parameters simultaneously, but the fidelity of encoding at the level of individual neurons is weak.  However, because encoding is redundant and consistent across the population, extraction methods based on multiple neurons are capable of generating a faithful representation of intended movement.  The realization that useful information is embedded in the population has spawned the current success of brain-controlled interfaces.  Since multiple movement parameters are encoded simultaneously in the same population of neurons, we have been gradually increasing the degrees of freedom (DOF) that a subject can control through the interface.  Our early work showed that 3-dimensions could be controlled in a virtual reality task.  We then demonstrated control of an anthropomorphic physical device with 4 DOF in a self-feeding task.  Currently, monkeys in our laboratory are using this interface to control a very realistic, prosthetic arm with a wrist and hand to grasp objects in different locations and orientations.  Our recent data show that we can extract 10-DOF to add hand shape and dexterity to our control set.  This technology has now been extended has been extended to a paralyzed patient who cannot move any part of her body below her neck.  Based on our laboratory work and using a high-performance “modular prosthetic limb” she has been able to control 10 degrees-of-freedom simultaneously.  The control of this artificial limb is intuitive and the movements are coordinated and graceful, closely resembling natural arm and hand movement.  This subject has been able to perform tasks of daily living--  reaching to, grasping and manipulating objects, as well as performing spontaneous acts such as self-feeding.  Current work is progressing toward making this technology more robust and extending the control with tactile feedback to sensory cortex.



List of Articles
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124 [Department Seminar 학과 정기 세미나 안내] (10/11, Wed) Prof. Hirohide Saito file admin 2023.10.05 34
123 [Department Seminar 학과 정기 세미나 안내] (11/01, Wed) Prof. Hee Chan Kim file admin 2023.10.24 34
122 [Department Seminar 학과 정기 세미나 안내] (11/08, Wed) Prof. Su-Hyun Kim file admin 2023.11.01 36
121 BBE/BCE Departmental Seminar for Fall Semester 2023 file admin 2023.08.23 45
120 [Department Seminar 학과 정기 세미나 안내] (11/15, Wed) Prof. Ain Chung file admin 2023.11.06 47
119 [Department Seminar 학과 정기 세미나 안내] (8/30, Wed) Prof. Kwang-Hyun Cho file admin 2023.08.23 53
118 [Starting 4:30 PM , Wednesday, May 17 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023,DaeHee Lee file admin 2023.05.15 54
117 [Starting 4:30 PM , Wednesday, May 24 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, DongWon Kim file admin 2023.05.15 58
116 [Department Seminar 학과 정기 세미나 안내] (9/13, Wed) Prof. Jaebum Choo file admin 2023.09.07 58
115 [Starting 4:30 PM , Wednesday, May 3 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, SungJune Kim file admin 2023.04.21 72
114 [Starting 4:30 PM , Wednesday, June 7 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, SungMin Son file admin 2023.05.26 89
113 [Starting 4:30 PM , Wednesday, April 26 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, Jangyeon Park file admin 2023.04.13 100
112 [Department Seminar 학과 정기 세미나 안내] (10/4, Wed) Prof. Hyeon Min Bae file admin 2023.09.27 116
111 [Starting 4:30 PM , Wednesday, April 12 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, YongKeun Park file admin 2023.04.06 151
110 [Starting 4:30 PM , Wednesday, April 5 / Venue: YBS Bldg. #207] BCE Departmental Seminar for Spring Semester 2023, Hyndoo Hwang file admin 2023.03.30 166
109 [Department Seminar 학과 정기 세미나 안내] (11/22, Wed) Prof. Yong Taik Lim file admin 2023.11.16 279
108 BBE Departmental Seminar for Fall 2022 file admin 2022.08.26 359
107 [Starting 4:30 PM , Wednesday, November 16 / Venue: YBS Bldg. #207] BBE Departmental Seminar for Fall Semester 2022 file admin 2022.11.17 377
106 BBE/BCE Departmental Seminar for Spring 2023 file admin 2023.02.27 378
105 [Starting 4:30 PM , Wednesday,September 28 / Online ZOOM] BBE Departmental Seminar for Fall Semester 2022 file admin 2022.09.23 382
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