Two-point discrimination threshold as a function of frequency and polarity at fingertip by electrical stimulation

Author

Hayashi, Kouki ; Ninjouji, Takashi

Author_Institution

Biol. Signal Process. Laboratory, NTT DoCoMo, Inc., Japan

Volume

2

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

4256

Lastpage

4259

Abstract

The effect of frequencies and current polarity of electrical stimulation to fingertip was investigated toward realizing electrocutaneous display. We measured the two-point discrimination threshold of electrical stimulation with 1.0 mm diameter electrodes spaced by 2.0 mm. The waveform pattern with the smallest two-point discrimination threshold was anode at frequencies from 200 to 400 Hz; most subjects could clearly discriminate the physical separation of 4 mm, some of them could discriminate 2 mm with optimized electrical stimulation.

Keywords

bioelectric phenomena; biomedical electrodes; display devices; handicapped aids; haptic interfaces; current polarity effects; electrical stimulation; electrocutaneous display; electrodes; fingertip; frequency effects; two-point discrimination threshold; Anodes; Displays; Electric variables measurement; Electrical stimulation; Electrodes; Frequency; Internet; Laboratories; Legged locomotion; Virtual reality; Tactile; electrical stimulation; electrocutaneous; two-point discrimination threshold;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1404186

Filename

1404186