The present study was carried out with a new approach to evaluating the comfort of fabric contact pressure. Functional magnetic resonance imaging technology was conducted to monitor brain response when a comfortable fabric contact pressure, according to the subjective evaluation, was applied to the skin surface of the lower human chest. After a strict method of calibration with a family-wise error check analysis, the study we performed revealed the right secondary somatosensory cortex appeared prominently positively activated under a comfortable fabric pressure state. This suggested the secondary somatosensory cortex brain region, particularly the right secondary somatosensory cortex, was probably the characteristic brain region for fabric comfort perception. A reasonable explanation was that proper contact pressure facilitated the serial information flow from the primary somatosensory cortex to the secondary somatosensory cortex, and comfortable touch stimulated the firing of A-beta afferent nerves.
BinnsH. The discrimination of wool fabrics by the sense of contact. British J Psychology General Section1926; 16: 237–247.
2.
Liu L. Study on factors related to comfort and physiological functions of regulated clothing. PhD Thesis, Donghua University, China, 2010.
3.
HolliesN. Visual and tactile perceptions of textile quality. J Textile Institute1989; 80: 1–18.
4.
Gao J. Study on pressure comfort of women's basketball underwear based on heart rate variation. Master’s Thesis, Zhejiang Sci-Tech University, China, 2014.
5.
JacobsenMFritzADhingraR, et al.A psychophysical evaluation of the tactile qualities of hand knitting yarns. Textile Res J1992; 62: 557–566.
6.
MengX. Research on contact pressure of elastic fabric clothing and establishment of contact comfort evaluation system, Shanghai, China: Donghua University, 2010.
7.
PeirceFT. 26: The “handle” of cloth as a measurable quantity. J Textile Institute Trans1930; 21: T377–T416.
8.
KirkWIbrahimS. Fundamental relationship of fabric extensibility to anthropometric requirements and garment performance. Textile Res J1966; 36: 37–47.
9.
FanJYanmeiLQintingG, et al.Design scheme of shapewear pants based on garment pressure test and evaluation. Shanghai Textile Tech2014; 42: 41–43.
KyungGNussbaumMA. Age-related difference in perceptual responses and interface pressure requirements for driver seat design. Ergonomics2013; 56: 1795–1805.
12.
LiuH. Study on pressure comfort of elastic sports vest [D], Wuxi, China: Jiangnan University, 2012.
13.
You Y. Study on the relationship between multidimensional mechanical properties of fabrics and clothing pressure. Master’s Thesis, Beijing Institute of Fashion Technology, China, 2015.
14.
YouFZhangY. Relationship between the tolerance and elastic modulus of tight clothing and the sense of clothing pressure. J Northwest Institute Textile Tech2000; 14: 133–137.
15.
HoribaYKamijoMHosoyaS, et al.Evaluation of tactile sensation for wearing by using event-related potential. Sen-I Gakkaishi2000; 56: 47–54.
16.
GarciaLLespinet-NajibVSaioudS, et al.,Brain-Computer Interface: Usability Evaluation of Different P300 Speller Configurations: A Preliminary Study. In: RojasIJoyaGCatalaA (eds). Advances in Computational Intelligence, Pt I2015, pp. 98–109.
17.
Liu H and Shen L. Electroencephalography (EEG) analysis method involves getting different perspectives of final result of image rotation error of evaluation level of comfort. Patent CN105395197-A.
18.
LiuYJChenDS. An analysis on EEG power spectrum under pressure of girdle. Int J Clothing Sci Tech2015; 27: 495–505.
19.
HuettelSASongAWMcCarthyG. Functional magnetic resonance imaging, Massachusetts, USA: Sinauer Associates, 2004.
20.
YinL. Study on pressure comfort of body-shaping abdominal belt clothing based on heart rate variation and brain wave analysis [D], Shanghai, China: Donghua University, 2012.
21.
DongB. Study on pressure comfort of knitted garments based on mechanical properties of fabrics, Shanghai, China: Shanghai University of Engineering Technology, 2011.
22.
AdrianE. Double representation of the feet in the sensory cortex of the cat. J Physiol1940; 98: 16–18.
23.
RidleyREttlingerG. Further evidence of impaired tactile learning after removals of the second somatic sensory projection cortex (SII) in the monkey. Experimental Brain Res1978; 31: 475–488.
24.
RidleyREttlingerG. Impaired tactile learning and retention after removals of the second somatic sensory projection cortex (SII) in the monkey. Brain Res1976; 109: 656–660.
25.
GreenspanJDWinfieldJA. Reversible pain and tactile deficits associated with a cerebral tumor compressing the posterior insula and parietal operculum. Pain1992; 50: 29–39.
26.
EickhoffSBSchleicherAZillesK, et al.The human parietal operculum. I. Cytoarchitectonic mapping of subdivisions. Cerebral Cortex2006; 16: 254–267.
27.
FregniFDaSilvaDPotvinK, et al.Treatment of chronic visceral pain with brain stimulation. Annals Neurol: Official J Am Neurological Assoc Child Neurol Soc2005; 58: 971–972.
28.
ValmunenTPertovaaraATaiminenT, et al.Modulation of facial sensitivity by navigated rTMS in healthy subjects. Pain2009; 142: 149–158.
29.
LindholmPLamusuoSTaiminenT, et al.Right secondary somatosensory cortex: A promising novel target for the treatment of drug-resistant neuropathic orofacial pain with repetitive transcranial magnetic stimulation. Pain2015; 156: 1276–1283.
30.
LockwoodPLIannettiGDHaggardP. Transcranial magnetic stimulation over human secondary somatosensory cortex disrupts perception of pain intensity. Cortex2013; 49: 2201–2209.
31.
Bhatia A, Gong RH, Gregory LJ, et al. Investigation of the perception of fabric hand using functional magnetic resonance imaging. Suzhou, China, 13–14 September 2007, p.221–224.
32.
WangQYuWHeN, et al.Investigation of the cortical activation by contacting fabric actively using fingers. Skin Res Tech2015; 21: 444–448.
33.
JonesEPowellT. Connexions of the somatic sensory cortex of the rhesus monkey: II. Contralateral cortical connexions. Brain1969; 92: 717–730.
34.
ChungYGHanSWKimH-S, et al.Intra-and inter-hemispheric effective connectivity in the human somatosensory cortex during pressure stimulation. BMC Neurosci2014; 15: 43–43.
35.
KhoshnejadMPichéMSalehS, et al.Serial processing in primary and secondary somatosensory cortex: A DCM analysis of human fMRI data in response to innocuous and noxious electrical stimulation. Neurosci Letters2014; 577: 83–88.
36.
McGloneFWessbergJOlaussonH. Discriminative and affective contact: Sensing and feeling. Neuron2014; 82: 737–755.
37.
McGloneFOlaussonHBoyleJ, et al.Contacting and feeling: Differences in pleasant contact processing between glabrous and hairy skin in humans. Eur J Neurosci2012; 35: 1782–1788.
38.
OlaussonHLamarreYBacklundH, et al.Unmyelinated tactile afferents signal contact and project to insular cortex. Nature Neurosci2002; 5: 900–900.
39.
Donadio V. Visualization of the Cutaneous Axonal Endings of CLTMs. Affective Contact and the Neurophysiology of CT Afferents. New York: Springer, 2016, pp. 61–68.
40.
LiljencrantzJBjörnsdotterMBergstrandS, et al.Altered C-tactile processing in human dynamic tactile allodynia. Pain2013; 154: 227–234.
41.
LloydDMMcGloneFPYosipovitchG. Somatosensory pleasure circuit: from skin to brain and back. Experimental Dermatol2015; 24: 321–324.
