E-Prime에 기반한 손가락 촉각 자극기의 개발
Development of a Finger Tactile Stimulator Based on E-Prime Software
0
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
본 연구에서는 선행 연구에서 개발된 촉각 자극 시스템의 시스템적인 문제, 자극 제어에 관한 문제, 기타 부가적인 문제들을 보완할 수 있는 촉각 자극기를 개발하였다. 개발된 장치는 제어부(control unit), 구동부 (drive unit), 진동부(vibrator)의 세부분으로 구성된다. 제어부는 E-Prime 소프트웨어로부터 명령을 전송받고 진동 자극 신호를 발생한다. 구동부는 촉각 자극기가 효과적으로 진동 자극을 발생할 수 있도록 충분한 전류를 공급한다. 진동부는 작은 동전(coin)형 진동기(vibrator)와 벨크로(velcro)로 구성되며 피험자의 손에 쉽게 고정 할 수 있도록 제작하였다. 개발된 장치는 소형, 경량, 저전력 구동, 간단한 구조, 최대 35개의 자극 채널, 시각 및 청각과의 다양한 자극 조합을 지연시간 없이 제시할 수 있도록 설계 되어 시스템적인 문제들을 보완하였다. 자극의 크기와 시간을 10단계로 조절할 수 있도록 하고, 넓은 동작주파수 범위를 확보하여 자극 제어에 관한 문제들을 보완하였다. 저전압 구동으로 인체에 대한 안정성을 확보하고, 손가락 이외에 신체의 어느 부분이든 자극 제시가 가능하도록 제작하였다. 특히 본 시스템은 인지과학 연구에서 범용으로 사용되는 소프트웨어인 E-Prime을 기반으로 개발되었기 때문에 활용성이 매우 높을 것으로 판단된다.
Abstract
In this study, a tactile stimulator was developed to resolve some problems from the previous version of the system such as system configuration, inappropriate stimulation control and additional problems. The developed tactile stimulator consists of control unit, drive unit and vibrator unit. The control unit was controlled by E-Prime software to generate appropriate vibration pulses. The drive unit supplies enough energy to the vibrator to generate effective stimulation pulses. The vibrator unit consists of small coin type vibrator and velcro, and was made to be attached at the hand easily. The developed tactile stimulator was designed by small-size, light-weight, low-power, simple-fabrication, max 35 channels and little delay time from instruction signal of E-Prime software to vibrator. The duration and magnitude of stimulation was controlled by 10 grades and the problems concerning stimulation control were compensated by wideband frequency ranges. Additionally, the electrical safety was ensured by low voltage operation. Vibrator was made to be attached on finger as well as on any part of the subject. Since this tactile stimulator is developed based on E-Prime software which is widely used in cognitive science, it is believed that this stimulator be suitable for the wide application of cognitive science study.
참고문헌 (36)
- Allen, H. A., "Direct tactile stimulation of dorsal occipito-temporal cortex in a visual agnosic", Current Biology, 19, pp.1044~1049 (2009)
- Asamura, N., "Selectively stimulating skin receptors for tactile display", IEEE Computer Graphics & Applications, pp.32~37 (1998)
- Auvray, M., "Tactile and visual distractors induce change blindness for tactile stimuli presented on the fingertips", Brain Research, 1213, pp.111~119 (2008)
- Beebe, D. J., "A polyimide-on-silicon electrostatic fingertip tactile display", Proceeding 17th International Conference IEEE, 1995, 1545~1546
- Chatterjee, A., "A brain-computer interface with vibrotactile biofeedback for haptic information", Journal of NeuroEngineering and Rehabilitation, 40(4) (2007)
- Dresel, C., "A new device for tactile stimulation during fMRI", NeuroImage, 39, pp.1094~1103 (2008)
- Drewing, K., "First evaluation of a novel tactile display exerting shear force via lateral displacement", ACM Transactions on Applied Perception, 2, pp.118~131 (2005)
- Frings, C., "Selection in touch : Negative priming with tactile stimuli", Perception & Psychophysics, 70, pp.516~523 (2008)
- Gallace, A., "Short term memory for tactile stimuli", Brain Research, 1190, pp.132~142 (2007)
- Graham, S. J., "New devices to deliver somatosensory stimuli during functional MRI", Magnetic Resonance in Medicine, 46, pp.436~442 (2001)
- Han, J. M., "Modeling piezoelectric actuators", IEEE, 2000, pp.5, 331~341
- Harrington, G. S., "A new vibrotactile stimulator for functional MRI", Human Brain Mapping, 10, pp.140~145 (2000)
- Hayward, V., "Tactile display device using distributed lateral skin stretch", Proceeding of the 8th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp.1309~1314 (2000)
- Hijmans, J. M., "Development of vibrating insoles", International Journal of Rehabilitation Research, 30, pp.343~345 (2007)
- Ho, C., "Head orientation biases tactile localization", Brain Research, 1144, pp.236~141 (2007)
- Ho, C., "Multisensory warning signals : When spatial correspondence matters", Experimental Brain Research, 195, pp.261~272 (2009)
- Ingeholm, J. E., "The Helix : A multi-modal tactile stimulator for human functional neuroimaging", Journal of Neuroscience Methods, 155, pp.217~223 (2006)
- Ino, S., "A tactile display for presenting quality of materials by changing the temperature of skin surface", IEEE International Workshop on Robot and Human Communication, pp.220~224 (1993)
- Jousmaki, V., "A brush stimulator for functional brain imaging", Clinical Neurophysiology, 118, pp.2620~2624 (2007)
- Jungmann, M., "Miniaturized electrostatic tactile display with high structural compliance", Proceeding of the Eurohaptics 2002 International Conference, pp.12~17 (2002)
- Kaczmarek, K. A., "Pattern identification on a fingertip-scanned electrotactile display", Proceeding of 19th International Conference IEEE, 1997, 1694~1697
- Khoudja, M. B., "VITAL: A VIbroTActiLe interface with thermal feedback", Proceeding of the IEEE International Conference on Robotics & Automation (2004)
- 김승찬, "사실적인 햅틱 표현을 위한 질감지각 감성 평가", 정보과학회논문지 : 소프트웨어 및 응용, 34(10), pp.900~909 (2007), 한국정보과학 id=
- Kyung, K. U., "Design of an integrated tactile display system", Proceeding of the IEEE International Conference on Robotics & Automation, pp.776~781 (2004)
- Maucher, T., "An interactive tactile graphics display", Sixth International Symposium on Signal Processing and its Applications, pp.190~193 (2001)
- Pawluk, D. T. V., "Control and pattern specification for high density tactile display", Proceeding of the ASME Dynamic Systems and Control Division, ASME International Mechanical Engineering Congress and Exposition, pp.97~102 (1998)
- Poletto, C. J., "A high voltage stimulator for small electrode electrocutaneous stimulation", Proceeding of the 19th IEEE International Conference IEEE, 1997, 2415~2418
- Sarakoglou, I., "portable fingertip tactile feedback array - transmission system reliability and modelling", Proceeding of the First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp.547~548 (2005)
- Schneider, W., "E-Prime User’s Guide" (2002), Psychology Software Tools Inc.
- Stetten, G., "Fingersight : Fingertip visual haptic sensing and control", IEEE International Workshop on Haptic Audio Visual Environments and their Applications. (2007)
- Steven, A. W., "A high bandwidth interface for haptic human computer interaction", Mechatronics, 11, pp.371~387 (2001)
- Summers, I. R., "A broadband tactile array on the fingertip", Journal of Acoustical Society of America, 112, pp.2118~2126 (2002)
- Tannan, V., "A portable tactile sensory diagnostic device", Journal of Neuroscience Methods, 164, pp.131~138 (2007)
- Velazquez, R., "A compact tactile display for the blind with shape memory alloys", Proceeding of the 2006 IEEE International Conference on Robotics and Automation, pp.3905~3910 (2006)
- Wagner, C. R., "A tactile shape display using RC servomotors", The Tenth Symposium on Haptics Interfaces for Virtual Environment Teleoperator Systems, pp.354~356 (2002)
- Zivotofsky, A. Z., "The Sensory feedback mechanism enabling couples to walk synchronously : An initial investigation", Journal of NeuroEngineering and Rehabilitation, 28(4) (2007)