Ko Chang-Yong, Chang Yunhee, Kim Sol-Bi, Kim Shinki, Kim Gyoosuk, Ryu Jeicheong, Mun Museong, Bae Tae Soo
Korea Orthopedics & Rehabilitation Research Center, 10, Gyeongin-ro, Bupyeong-gu, Incheon 403-120, Republic of Korea.
Korea Orthopedics & Rehabilitation Research Center, 10, Gyeongin-ro, Bupyeong-gu, Incheon 403-120, Republic of Korea.
Physiol Behav. 2015 Jan;138:87-93. doi: 10.1016/j.physbeh.2014.10.021. Epub 2014 Oct 29.
Vibrotactile stimulation (VS) is widely used in the biomedical and biomechanics fields. Most studies have attempted to verify the effects and/or function of VS, but few studies have evaluated emotional response (ER) to VS, although emotions play a critical role in human behavior. This study aimed to evaluate the subjective response (SR) to VS in young, elderly, and amputee adults and to verify whether VS on the forearm evokes displeasure. Twenty-four young adults (YM: male 13, YF: female 11), 31 elderly subjects (EM: male 15, EF: female 16), and 19 transradial amputees (AM: male 11, AF: female 8) participated. Eight equally spaced vibration motors were attached around the circumference of the forearm (channels 1-4 on the lateral site and channels 5-8 on the medial site) and were located 25% of the proximal forearm. Vibration stimuli with frequencies ranging from 37Hz to 258Hz were applied. An SR 10-level test and ER (displeasure or not) test were performed. In all 3 groups, SRs to the lateral site were higher than those to the medial site (YM group, p<0.001; YF group, p=0.002; EM group, p<0.001; EF group, p=0.031; AM group, p<0.001; AF group, p=0.021). Additionally, SRs were saturated at certain frequencies (YM group, 149Hz; YF and EM groups, 198Hz; EF and AM groups, 120Hz; AF group, 176Hz). Several subjects (YM group, 7; YF group, 4; EM group, 2; EF group, 6; AM group, 3; AF group, 1) expressed displeasure, and ERs were different according to sex, age, or amputation. As a result, the lateral site was more sensitive to VS than the medial site, regardless of sex, age, or amputation. Furthermore, VS may evoke displeasure.
振动触觉刺激（VS）在生物医学和生物力学领域中被广泛应用。大多数研究试图验证VS的效果和/或功能，但尽管情绪在人类行为中起着关键作用，却很少有研究评估对VS的情绪反应（ER）。本研究旨在评估年轻人、老年人和截肢成年人对VS的主观反应（SR），并验证前臂上的VS是否会引起不适。24名年轻成年人（YM：男性13名，YF：女性11名）、31名老年受试者（EM：男性15名，EF：女性16名）和19名经桡骨截肢者（AM：男性11名，AF：女性8名）参与了研究。八个等间距的振动电机围绕前臂周长附着（外侧部位为通道1 - 4，内侧部位为通道5 - 8），并位于前臂近端的25%处。施加了频率范围为37Hz至258Hz的振动刺激。进行了SR 10级测试和ER（是否不适）测试。在所有3组中，对外侧部位的SR高于内侧部位（YM组，p<0.001；YF组，p = 0.002；EM组，p<0.001；EF组，p = 0.031；AM组，p<0.001；AF组，p = 0.021）。此外，SR在某些频率下达到饱和（YM组为149Hz；YF和EM组为198Hz；EF和AM组为120Hz；AF组为176Hz）。几名受试者（YM组7名；YF组4名；EM组2名；EF组6名；AM组3名；AF组1名）表示不适，并且ER因性别、年龄或截肢情况而异。结果，无论性别、年龄或截肢情况如何，外侧部位对VS比内侧部位更敏感。此外，VS可能会引起不适。
