Assessment of biosignals for managing a virtual keyboard

Authors:
Manuel Merino;Isabel Gómez;Alberto J. Molina;Kevin Guzman
Affiliations:
Electronic Technology Department, University of Seville, Seville, Spain;Electronic Technology Department, University of Seville, Seville, Spain;Electronic Technology Department, University of Seville, Seville, Spain;Guadaltel, Seville, Spain
Venue:
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part II
Year:
2012

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Abstract

In this paper we propose an assessment of biosignals for handling an application based on virtual keyboard and automatic scanning. The aim of this work is to measure the effect of using such application, through different interfaces based on electromyography and electrooculography, on cardiac and electrodermal activities. Five people without disabilities have been tested. Each subject wrote twice the same text using an electromyography interface in first test and electrooculography in the second one. Each test was divided into four parts: instruction, initial relax, writing and final relax. The results of the tests show important differences in the electrocardiogram and electrodermal activity among the parts of tests.