Improved Acuity and Dexterity but Unchanged Touch and Pain Thresholds following Repetitive Sensory Stimulation of the Fingers

<table>Pressure-pain thresholds of <i>d1</i>, <i>d2</i> (<svg height="11.225" id="M40" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 44.400002 11.225" width="44.400002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,10.963)"><use xlink:href="#x1D45B"></use></g><g transform="matrix(.017,-0,0,-.017,13.305,10.963)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,28.008,10.963)"><use xlink:href="#x32"></use></g><g transform="matrix(.017,-0,0,-.017,36.168,10.963)"><use xlink:href="#x36"></use></g>
</svg>), and <i>d4</i> (<svg height="11.125" id="M41" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 44.400002 11.125" width="44.400002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,10.862)"><use xlink:href="#x1D45B"></use></g><g transform="matrix(.017,-0,0,-.017,13.305,10.862)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,28.008,10.862)"><use xlink:href="#x31"></use></g><g transform="matrix(.017,-0,0,-.017,36.168,10.862)"><use xlink:href="#x30"></use></g>
</svg>). There were no significant changes after rSS, neither for the stimulated fingers (<i>d1</i> and <i>d2</i>; <svg height="11.85" id="M42" style="vertical-align:-0.546pt" version="1.1" viewbox="0 0 66.875 11.85" width="66.875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.113)"><use xlink:href="#x1D443"></use></g><g transform="matrix(.017,-0,0,-.017,15.582,11.113)"><use xlink:href="#x2265"></use></g><g transform="matrix(.017,-0,0,-.017,30.286,11.113)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,38.446,11.113)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,42.321,11.113)"><path d="M249 635q70 0 116 -43t46 -105q0 -46 -28 -80q-22 -25 -80 -64q62 -35 97 -75t35 -99q0 -81 -63 -131t-135 -50q-83 0 -137.5 45.5t-54.5 123.5q0 52 45 95q29 28 89 64q-109 62 -109 155q0 66 50.5 115t128.5 49zM238 603q-42 0 -67.5 -31t-25.5 -72q0 -50 32.5 -79.5
t98.5 -62.5q61 48 61 124q0 59 -29.5 90t-69.5 31zM248 20q46 0 76.5 33.5t30.5 89.5q0 50 -39 85.5t-110 71.5q-81 -54 -81 -137q0 -67 35.5 -105t87.5 -38z" id="x38"></path></g><g transform="matrix(.017,-0,0,-.017,50.481,11.113)"><path d="M244 635q90 0 143 -72t53 -177q0 -133 -65 -229.5t-171 -139.5q-79 -32 -140 -32l-5 30q109 18 185 91t101 186l-68 -36q-29 -16 -60 -16q-79 0 -129 51.5t-50 130.5q0 80 57 146.5t149 66.5zM228 602q-52 0 -78 -45.5t-26 -98.5q0 -69 36.5 -115.5t97.5 -46.5
q53 0 90 28q4 31 4 66q0 51 -9.5 95.5t-39 80.5t-75.5 36z" id="x39"></path></g><g transform="matrix(.017,-0,0,-.017,58.64,11.113)"><use xlink:href="#x36"></use></g>
</svg>), nor for the not stimulated finger (<i>d4</i>; <svg height="11.375" id="M43" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 66.875 11.375" width="66.875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><use xlink:href="#x1D443"></use></g><g transform="matrix(.017,-0,0,-.017,15.582,11.112)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,30.286,11.112)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,38.446,11.112)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,42.321,11.112)"><use xlink:href="#x32"></use></g><g transform="matrix(.017,-0,0,-.017,50.481,11.112)"><use xlink:href="#x31"></use></g><g transform="matrix(.017,-0,0,-.017,58.64,11.112)"><path d="M285 378v-2q65 -13 102 -54.5t37 -97.5q0 -57 -30.5 -104.5t-74 -75t-85.5 -42t-72 -14.5q-31 0 -59.5 11t-40.5 23q-19 18 -16 36q1 16 23 33q13 10 24 0q58 -51 124 -51q55 0 88 40t33 112q0 64 -39 96.5t-88 32.5q-29 0 -64 -11l-6 29q77 25 118 57.5t41 84.5
q0 45 -26.5 69.5t-68.5 24.5q-67 0 -120 -79l-20 20l43 63q51 56 127 56h1q66 0 107 -37t41 -95q0 -42 -31 -71q-22 -23 -68 -54z" id="x33"></path></g>
</svg>).</table>

Neural Plasticity

fig3

Figure 3

Figure 3: Improved Acuity and Dexterity but Unchanged Touch and Pain Thresholds following Repetitive Sensory Stimulation of the Fingers 