Effects of age and disability on tracking tasks with a computer mouse

Accuracy and linearity

Cameron N. Riviere, Nitish V Thakor

Research output: Contribution to journalArticle

Abstract

Many individuals with movement disorders are unable to make efficient use of graphical computer interfaces commonly employed in personal computers. In this study, performance limitations in target tracking with a computer mouse were studied for eight young subjects aged 19 to 29 (M=23, SD=3), four old subjects aged 70 to 73 (M=72, SD=1), and five motor-disabled subjects aged 37 to 74 (M=65, SD=16). Subjects tracked simple one- and two-dimensional motions at various frequencies. Performance was measured using an accuracy index derived from root-mean-square error, and a linearity index based on coherence estimation. A maximum bandwidth of 2 Hz for accuracy of mouse use was found, which often decreased due to advanced age or motor disability. Tracking linearity of all groups decreased as frequency increased. A significant degree of nonlinearity existed in all results (p

Original languageEnglish (US)
Pages (from-to)6-15
Number of pages10
JournalJournal of Rehabilitation Research and Development
Volume33
Issue number1
StatePublished - Feb 1996

Fingerprint

Movement Disorders
Microcomputers
Target tracking
Personal computers
Mean square error
Interfaces (computer)
Bandwidth

Keywords

  • human-machine systems
  • movement
  • myoclonus
  • tremor

ASJC Scopus subject areas

  • Rehabilitation
  • Health Professions(all)
  • Engineering(all)

Cite this

Effects of age and disability on tracking tasks with a computer mouse : Accuracy and linearity. / Riviere, Cameron N.; Thakor, Nitish V.

In: Journal of Rehabilitation Research and Development, Vol. 33, No. 1, 02.1996, p. 6-15.

Research output: Contribution to journalArticle

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