Using Fitts´s law for evaluating Tongue Drive System as a pointing device for computer access

Author

Yousefi, Behnaz ; Huo, Xueliang ; Ghovanloo, Maysam

Author_Institution

GT-Bionics Lab., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2010

fDate

Aug. 31 2010-Sept. 4 2010

Firstpage

4403

Lastpage

4406

Abstract

In this paper, the results of a 2-D center-out task in a Fitts´s law experiment have been presented for measuring the performance of the Tongue Drive System (TDS). Although the end-user population for TDS is individuals with tetraplegia, in this study, we recruited 6 able-bodied subjects in 3 sessions, conducted in 3 consecutive days. They performed the same task with their right hand using a standard mouse for achieving a baseline as well as a standard keypad with their right index finger. The resulting average throughput for TDS, keypad, and mouse were 1.67, 2.17, and 3.99 bit/s, respectively.

Keywords

handicapped aids; keyboards; medical disorders; mouse controllers (computers); 2-D center-out task; Fitts law; assistive technology; computer access; pointing device; severe movement disabilities; tetraplegia; tongue drive system; Computers; Indexes; Mice; Performance evaluation; Pixel; Throughput; Tongue; Communication Aids for Disabled; Computer Peripherals; Equipment Design; Equipment Failure Analysis; Humans; Magnetics; Task Performance and Analysis; Tongue; Transducers; User-Computer Interface;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Conference_Location

Buenos Aires

ISSN

1557-170X

Print_ISBN

978-1-4244-4123-5

Type

conf

DOI

10.1109/IEMBS.2010.5627130

Filename

5627130