title: Differing ERP patterns caused by suction and puff stimuli.
abstract: The present study compared event-related potential (ERP) patterns for two stimuli types, puff and suction, by applying these stimuli to the fingers; ERP patterns for the two stimuli were compared at C3, an area related to somatosensory perception, and at FC5, an area related to motor function. Participants were 12 healthy males in their 20s (mean age=23.1±2.0 years). One session consisted of a Control Phase (3s), a Stimulation Phase (3s), and a Rest Phase (9s). During the Stimulation Phase, a 4-psi suction or puff stimulus was applied to the first joint of the right index finger. After completion of the session, a subjective magnitude test was presented. In all phases, electroencephalography signals were recorded. We extracted maximum positive amplitude and minimum negative amplitude as well as relevant latency values for C3 and FC5 signals. Suction and puff stimuli had similar subjective magnitude scores. For both C3 and FC5, the maximum and minimum amplitude latency was reached earlier for the suction stimulus than for the puff stimulus. In conclusion, when suction and puff stimuli of the same intensity were applied to the fingers, the suction stimulus caused a more sensitive response in the somatosensory area (C3) and motor area (FC5) than did the puff stimulus.
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: Hyung-Sik
authors.initials: HS
authors.lastname: Kim
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: 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: 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: 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: Seon-Young
authors.initials: SY
authors.lastname: Gim
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 Human and Systems Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea.
authors.forename: Sung-Pil
authors.initials: SP
authors.lastname: Kim
authors.affiliation: Department of Information and Communication Engineering, Dongguk University, Seoul, South Korea.
authors.forename: Dae-Woon
authors.initials: DW
authors.lastname: Lim
authors.affiliation: Department of Obstetrics & Gynecology, Konkuk University, Chungju, South Korea.
authors.forename: Hyun-Jun
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, Chungju, South Korea. Electronic address: scchung@kku.ac.kr.
authors.forename: Soon-Cheol
authors.initials: SC
authors.lastname: Chung
mesh_terms: D000328:Adult; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D008297:Male; D010812:Physical Stimulation; D011312:Pressure; D013003:Somatosensory Cortex / Q000502:physiology*; D055815:Young Adult
keywords: C3; ERP; FC5; Puff; Suction