Fig. 1

Stimulus paradigm each mechanical tactile stimulation intervention conditions. The three intervention conditions were as follows: (A) repetitive global tactile stimulation (RGS) intervention, in which all 16 pins appeared and disappeared at the same time; (B) horizontal moving tactile stimulation (HMS) intervention, in which a row of four vertically aligned pins moved and from left to right before it disappeared; and (C) Control intervention, in which the right index finger is placed on the device without stimulation