title: Development of a simultaneous vibration and pressure stimulation system for cognitive studies.
abstract: In this study, a tactile stimulator that could separately or simultaneously display the vibrotactile and pressure sense was developed. The developed system consisted of a control unit, a drive unit, and an actuator, and can be operated with PC or manually. This system quantitatively controls the stimulation parameters such as the stimulation intensity, duration, frequency, and stimulation type. A preliminary electroencephalogram (EEG) experiment for three types of stimulation (vibrotactile, pressure sense, vibrotactile + pressure sense) highlights that the system could be used in complex tactile cognitive studies. An event-related desynchronization (ERD) and synchronization (ERS) were measured at the area of C3 and C4 for all three types of stimulation, and a clear response was identified in the contralateral somatosensory area from the brain topology. Therefore, it is expected that this system could be widely used in single and complex human tactile cognition and perception studies for vibrotactile and pressure sensation.
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Soon-Cheol
authors.initials: SC
authors.lastname: Chung
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Mi-Hyun
authors.initials: MH
authors.lastname: Choi
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Sung-Jun
authors.initials: SJ
authors.lastname: Park
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Jung-Chul
authors.initials: JC
authors.lastname: Lee
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Ul-Ho
authors.initials: UH
authors.lastname: Jeong
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Ji-Hye
authors.initials: JH
authors.lastname: Baek
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Ji-Hye
authors.initials: JH
authors.lastname: You
authors.affiliation: Department of Radiology, School of Medicine, Konkuk University, Chungju, South Korea.
authors.forename: Young Chil
authors.initials: YC
authors.lastname: Choi
authors.affiliation: Department of Information & Communication Engineering, Dongguk University, Seoul, South Korea.
authors.forename: Dae-Woon
authors.initials: DW
authors.lastname: Lim
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Jeong-Han
authors.initials: JH
authors.lastname: Yi
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea.
authors.forename: Hyung-Sik
authors.initials: HS
authors.lastname: Kim
mesh_terms: D000328:Adult; D003071:Cognition / Q000502:physiology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005073:Evoked Potentials, Somatosensory / Q000502:physiology; D005260:Female; D006801:Humans; D059346:Magnets; D008297:Male; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D010812:Physical Stimulation / Q000295:instrumentation*; D011312:Pressure; D013003:Somatosensory Cortex / Q000502:physiology*; D013314:Stress, Mechanical; D014110:Touch / Q000502:physiology*; D014732:Vibration
keywords: Tactile stimulator; electroencephalogram; pressure; simultaneous stimulation; vibration