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PubMed · 7779010

Electrotactile stimulator for artificial proprioception.

P Nohama·A V Lopes·A Cliquet Júnior
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Abstract

With the goal of investigating artificial proprioception elicited by electrical stimulation, we have developed a tactile phi phenomenon-based stimulator. This two-channel microprocessed pulse amplitude modulation system generates two different envelope waveforms (triangular and elliptical) and allows programming and visualizing of its main parameters: pulse with (0.1-10 ms), pulse frequency (0.1-10 kHz), modulation frequency (0.3-10 Hz), current intensity (up to 20 mA), and the amplitude modulation index (0-100%). In vivo experiments with 5 normal persons have shown that it is possible to elicit a moving fused phantom image with good resolution. A triangular envelope is good for straight line sensations while the elliptical one is more comfortable and has better resolution for all kinds of moving images.

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Biofeedback, PsychologyComputer SimulationElectric StimulationHumansProprioceptionSensory AidsJournal ArticleResearch Support, Non-U.S. Gov't

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BibTeXRIS

P Nohama, A V Lopes, A Cliquet Júnior. 1995. Electrotactile stimulator for artificial proprioception.. https://doi.org/10.1111/j.1525-1594.1995.tb02318.x

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