NBC 2009August2

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Electrostim

More electrostim excitement ensued. Once again, driving signal generator output backwards through a transformer extracted from a wall-wart into 3M red dots on our valiant experimenter.

Subject V mA f Perception
MikeW 11 0.5 60 initial sensation
MikeW 14 0.6 60 Definitely feel tickle
MikeW 18 0.9 60 muscle contractions (bordering on v. uncomfortable)
MikeW 22 1.2 60 stops being fun
Rachel 6 0.15 60 initial sensation
Rachel 12 0.5 60 can distinguish brief pulses
Rachel 14 0.9 60 distinct buzzing and less precise location sensation when tapping
Rachel 16 1.0 60 muscle twitches in hand
Rachel 18 1.25 60 distinctly uncomfortable
Ryan 7 0.2 60 initial sensation
Ryan 10 0.5 60 distinct sensation
Ryan 15 1.0 60 strong muscular influence
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