Advanced Textile Technology ›› 2023, Vol. 31 ›› Issue (1): 73-81.DOI: 10.19398/j.att.202203070

• Invited Column: Wearable and Intelligent Textiles • Previous Articles     Next Articles

Research progress of ERPs technology in fabric tactile comfort evaluation

ZHAI Shunaa, YUAN Jiea,b, LOU Lina,b,c,d   

  1. a. School of Fashion Design & Engineering;
    b. MOC Key Laboratory of Silk Culture Heritage and Product Design Digital Technology;
    c. MOE Key Laboratory of Advanced Textile Material and Preparation Technology;
    d. Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
  • Received:2022-03-29 Online:2023-01-10 Published:2023-01-17

事件相关电位技术在织物触觉舒适度评价中的研究进展

翟淑娜a, 苑洁a,b, 娄琳a,b,c,d   

  1. 浙江理工大学, a.服装学院;
    b.丝绸文化传承与产品设计数字化技术文化和旅游部重点实验室;
    c.先进纺织材料与制备技术教育部重点实验室;
    d.浙江省纤维材料和加工技术研究重点实验室,杭州 310018
  • 通讯作者: 苑洁,E-mail:yuanjie@zstu.edu.cn.
  • 作者简介:翟淑娜(1997—),女,山东临沂人,硕士研究生,主要从事织物压力舒适度脑感知方面的研究。
  • 基金资助:
    浙江省自然科学基金项目(LQ18E030007);国家自然科学基金项目(52003245);先进纺织材料与制备技术教育部重点实验室和浙江省纤维材料和加工技术研究重点实验室(浙江理工大学)开放基金项目(2019QN05);浙江省教育厅基金项目(113129A4F21075);浙江理工大学科研启动基金项目(11313132612042)

Abstract: People's health design requirements for the fit, functionality and comfort of wearable fabrics are gradually increasing, and the research on the perceptual mechanism of fabric tactile comfort is urgent. The event-related potentials (ERPs) technology with microsecond time resolution can quickly capture the changes of EEG signals related to fabric comfort, which is of great significance for exploring the dynamic perception mechanism of fabric comfort.
ERPs technology can effectively monitor the relevant brain regions under the fabric contact stimulation in real time, so as to obtain the potential components related to the tactile comfort of the fabric. By recording the amplitude, latency and distribution of evoked potential components, we can quickly, objectively and accurately understand the psychological and physiological changes in the process of stimulation, so as to characterize the comfort level of human body. Specifically, the evoked potential components P50, P100, P200, P300 and N450 are characterization indexes of brain physiological response to mild tactile stimulation and contact pressure stimulation. In the process of application of ERPs technology, it is mainly affected by physical, physiological and psychological aspects. Physical factors include stimulation probability, stimulation frequency, stimulation mode, stimulation task difficulty and stimulus characteristics; physiological factors include age, gender, health status, sensory selection and stimulation site; psychological factors include subjects' emotional state and attention.
At present, the evaluation of tactile comfort of fabrics based on ERPs technology has become a hot research topic. The amplitude and latency of its components can effectively evaluate the tactile comfort perception of fabrics, which provides great potential for in situ characterization of tactile stimuli of fabrics.
Based on the brain perceptual representation principle of ERPs technology, we summarize the research status of ERPs technology in the evaluation of the fabric′s slight tactile comfort and contact pressure comfort. It is concluded that the components P50, P100, P200, and P300 are related to the fabric's slight tactile comfort perception, and N450 is related to fabric deep contact pressure perception. Many factors such as physics, human physiology and psychology affect ERPs evoked potentials. In the process of fabric contact stimulation, it is very important to master the quantitative influence of interference factors on brain evoked potentials, and to control and eliminate interference factors. It is very important to explore the characterization of fabric comfort by using ERPs technology in the future. We should further explore the brain potential components induced by surface property stimulation such as cold and warm feeling, clinginess and itching feeling and cross-sensory stimulation, and quantitatively study the stimulus and potential components of fabrics.

Key words: tactile comfort, ERPs, amplitude, incubation period

摘要: 具有超高时间分辨率的事件相关电位(Event-related potentials,ERPs)技术为织物触觉舒适度的大脑感知表征研究提供了新的方法。在国内外文献基础上,归纳了ERPs技术在织物触觉舒适度感知表征中的研究进展,得到与织物轻微触感舒适度和接触压力舒适度感知相关的诱发电位成分分别为P50、P100、P200、P300和N450,并从物理、生理和心理3个方面探讨了将ERPs技术应用于织物舒适度感知过程中需注意的影响因素,为该技术与织物舒适度感知的深度结合提供应用基础。

关键词: 触觉舒适度, 事件相关电位(ERPs), 振幅, 潜伏期

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