Table 1.
Textile composition of the three sample fabrics.
Table 2.
Physical parameters measured by FTT.
Fig 1.
Experimental setup for the EEG evaluation during the fabric stimuli.
Fig 2.
Experimental protocol for EEG evaluation.
Fig 3.
The whole brain EEG topography on the Theta and Gamma power bands in response to fabric stimuli.
The topography about the relative spectral powers of 64 EEG channels on the whole brain indicated the power changes compared to the baseline. There is no unit for the relative power according to Eq 1, normalized with respect to the total power. Red markers indicate the 21 EEG channels selected (FC3, FC1, FC5, C5, C3, C1, CP3, CP1, CP5, FC2, FC4, FC6, C2, C4, C6, CP2, CP4, CP6, Cz, FCz, and CPz).
Fig 4.
EEG relative power bands of 21 channels on the somatosensory area in response to fabric stimuli.
The significant difference is indicated by **P <0.01 and * P <0.05 among three fabrics. Data are presented as mean ± SEM. Delta: δ; Theta: θ; Alpha: α; Beta: β; Gamma: γ. There is no unit for the relative power according to Eq 1, normalized with respect to the total power.
Fig 5.
Rates of the subjective sensations measured by questionnaire in response to fabric stimuli.
The significant difference is indicated by **:P <0.01 and *:P <0.05, as compared with the other two fabrics. Data are presented as mean ± SEM. Warmness: Cool-Warm; Dryness: Damp-Dry; Non-itchy: Itchy-Non-itchy, Non-scratchy: Scratchy-Non-scratchy; Non-prickly: Prickly-Non-prickly; Smoothness: Rough-Smooth; Non-adhesive: Sticky-Non-adhesive; Pliableness: Stiff-Pliable; Thickness: Thick-Thin; Softness: Hard-Soft; Elasticity: Inelastic-Elastic; Fullness: Non-fullness-Fullness; Comfort: Overall uncomfortable-Comfortable. The ranking scale is from 1 to 7 [1].
Table 3.
Physical properties of the three fabrics obtained from FTT.
Table 4.
EEG relative power bands of 21 channels on the somatosensory area in response to fabric stimuli.
Table 5.
Subjective sensation evaluated by questionnaire in response to fabric stimuli.
Table 6.
Correlation of the Theta and Gamma bands with the subjective sensations measured by questionnaire.
Table 7.
Correlation of the Theta and Gamma bands with the physical properties.