Document Detail


Maximal dynamic range electrotactile stimulation waveforms.
MedLine Citation:
PMID:  1516937     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A new method to measure the dynamic range of electrotactile (electrocutaneous) stimulation uses both steepest ascent (gradient) and one-variable-at-a-time methods to determine the waveform variables that maximize the subjective magnitude (intensity) of the electrotactile percept at the maximal current without discomfort for balanced-biphasic pulse bursts presented at a 15-Hz rate. The magnitude at the maximal current without discomfort is maximized by the following waveform (range tested in parentheses): number of pulses/burst = 6 (1-20), pulse repetition rate within a burst = 350 Hz (200-1500), and phase width = 150 microseconds (40-350). The interphase interval (separation between positive and negative phases in a biphasic pulse) does not affect dynamic range from 0-500 microseconds. The number of pulses/burst has a large effect on the perceived dynamic range when this is measured using a subjective-magnitude-based algorithm, whereas it has little effect on the traditional dynamic range measure, i.e., (maximal current without discomfort)/(sensation threshold current). The perceived stimulus magnitude at the maximal current without discomfort is approximately twice as strong with 6 pulses/burst as it is with 1 pulse/burst (a frequently-used waveform).
Authors:
K A Kaczmarek; J G Webster; R G Radwin
Related Documents :
16667377 - Mechanism of nitrogenase inhibition in soybean nodules : pulse-modulated spectroscopy i...
9633067 - Postshock recovery interval of relatively refractory myocardium as a possible explanati...
22968427 - Binaural benefit with and without a bilateral spectral mismatch in acoustic simulations...
19474937 - Generation of a broadband spectral comb with multiwave mixing by exchange of an impulsi...
9536357 - The area of spatial integration for initial horizontal disparity vergence.
22583207 - Long range excitonic transport in a biomimetic system inspired by the bacterial light-h...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  IEEE transactions on bio-medical engineering     Volume:  39     ISSN:  0018-9294     ISO Abbreviation:  IEEE Trans Biomed Eng     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-10-07     Completed Date:  1992-10-07     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0012737     Medline TA:  IEEE Trans Biomed Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  701-15     Citation Subset:  IM    
Affiliation:
Department of Electrical and Computer Engineering, University of Wisconsin, Madison 53706.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Bias (Epidemiology)
Computer Simulation*
Electric Stimulation*
Evaluation Studies as Topic
Humans
Reference Values
Sensory Thresholds
Skin Physiological Phenomena*
Touch / physiology*
Grant Support
ID/Acronym/Agency:
NS26328/NS/NINDS NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Neural stimulation with magnetic fields: analysis of induced electric fields.
Next Document:  A movement pattern generator model using artificial neural networks.