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Performance investigation of a head-operated device and expanded membrane cursor keys in a target acquisition task.

This study investigated the relative performance of two computer input devices appropriate for persons sharing similar motor challenges: a head operated device and expanded membrane cursor keys. Performance was evaluated in the context of a Fitts' law target acquisition task. For this initial phase...

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Published in:Technology & Disability Vol. 17; no. 3; pp. 173 - 184
Main Authors: Capilouto GJ, Higginbotham DJ, McClenaghan B, Williams HG, Dickerson J
Format: research tables/charts Journal Article
Published: Sage Publications Inc. 2005
Online Access:View this record in EBSCOhost
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      pub: Sage Publications Inc.
      place: Thousand Oaks, California
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        atl: Performance investigation of a head-operated device and expanded membrane cursor keys in a target acquisition task.
      aug:
        au:
          Capilouto GJ
          Higginbotham DJ
          McClenaghan B
          Williams HG
          Dickerson J
        affil: College of Health Sciences, 900 S. Limestone, Room 120 J, University of Kentucky, Lexington, KY 40536-0200; gjcapi2@uky.edu
      sug:
        subj:
          Assistive Technology Devices
          Computer Input Devices
          Persons with Disabilities
          Equipment Design
          Reaction Time
          Task Performance and Analysis
          Comparative Studies
          Data Analysis Software
          Post Hoc Analysis
          Human
      ab: This study investigated the relative performance of two computer input devices appropriate for persons sharing similar motor challenges: a head operated device and expanded membrane cursor keys. Performance was evaluated in the context of a Fitts' law target acquisition task. For this initial phase of investigation, subjects without disabilities were selected to focus on performance differences inherent in the devices and their operation. Results indicated that the total time to acquire a target was significantly faster for the head device than for the expanded cursor keys. For typical young adults, the head-operated device required less time to reach asymptote performance by simplifying the cognitive demands for device operation. These results suggest that for persons unable to isolate their fingers, head-operated controls may offer advantages over input devices operated by the upper extremities.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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