naa a22 4500 510777376 CHVBK 20180411083235.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.3758/s13428-012-0268-z doi (NATIONALLICENCE)springer-10.3758/s13428-012-0268-z Development of a simple MR-compatible vibrotactile stimulator using a planar-coil-type actuator [Elektronische Daten] [Hyung-Sik Kim, Mi-Hyun Choi, Yoon-Gi Chung, Sung-Phil Kim, Jae-Hoon Jun, Jang-Yeon Park, Jeong-Han Yi, Jong-Rak Park, Dae-Woon Lim, Soon-Cheol Chung] For this study, we developed a magnetic resonance (MR)-compatible vibrotactile stimulator using a planar-coil-type actuator. The newly developed vibrotactile stimulator consists of three units: control unit, drive unit, and planar-coil-type actuator. The control unit controls frequency, intensity, time, and channel, and transfers the stimulation signals to the drive unit. The drive unit operates the planar-coil-type actuator in response to commands from the control unit. The planar-coil-type actuator, which uses a planar coil instead of conventional electric wire, generates vibrating stimulation through interaction of the current of the planar coil with the static magnetic field of the MR scanner. Even though the developed tactile stimulating system is small, simple, and inexpensive, it has a wide range of stimulation frequencies (20 ~ 400Hz, at 40 levels) and stimulation intensities (0 ~ 7V, at 256 levels). The stimulation intensity does not change due to frequency changes. Since the transient response time is a few microseconds, the stimulation time can be controlled on a scale of microseconds. In addition, this actuator has the advantages of providing highly repeatable stimulation, being durable, being able to assume various shapes, and having an adjustable contact area with the skin. The new stimulator operated stably in an MR environment without affecting the MR images. Using functional magnetic resonance imaging, we observed the brain activation changes resulting from stimulation frequency and intensity changes. Psychonomic Society, Inc., 2012 MR-compatible nationallicence Planar-coil-type actuator nationallicence Vibrotactile stimulator nationallicence Electromagnetic nationallicence Kim Hyung-Sik Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Choi Mi-Hyun Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Chung Yoon-Gi Department of Brain and Cognitive Engineering, Korea University, Seoul, South Korea aut Kim Sung-Phil Department of Brain and Cognitive Engineering, Korea University, Seoul, South Korea aut Jun Jae-Hoon Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Park Jang-Yeon Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Yi Jeong-Han Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Park Jong-Rak Department of Photonic Engineering, Chosun University, Gwangju, South Korea aut Lim Dae-Woon Department of Information & Communication Engineering, Dongguk University, Seoul, South Korea aut Chung Soon-Cheol Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut Behavior Research Methods Springer-Verlag 45/2(2013-06-01), 364-371 45:2<364 2013 45 13428 https://doi.org/10.3758/s13428-012-0268-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3758/s13428-012-0268-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Hyung-Sik Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 700 1- Choi Mi-Hyun Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 700 1- Chung Yoon-Gi Department of Brain and Cognitive Engineering, Korea University, Seoul, South Korea aut NATIONALLICENCE 700 1- Kim Sung-Phil Department of Brain and Cognitive Engineering, Korea University, Seoul, South Korea aut NATIONALLICENCE 700 1- Jun Jae-Hoon Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 700 1- Park Jang-Yeon Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 700 1- Yi Jeong-Han Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 700 1- Park Jong-Rak Department of Photonic Engineering, Chosun University, Gwangju, South Korea aut NATIONALLICENCE 700 1- Lim Dae-Woon Department of Information & Communication Engineering, Dongguk University, Seoul, South Korea aut NATIONALLICENCE 700 1- Chung Soon-Cheol Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, 380-701, Chungju-si, Chungcheongbuk-do, South Korea aut NATIONALLICENCE 773 0- Behavior Research Methods Springer-Verlag 45/2(2013-06-01), 364-371 45:2<364 2013 45 13428 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer