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• Increasing the Accessibility of Pen-Based Technology: An Investigation of Age-Related Target Acquisition Difficulties

  Karyn Moffatt · 2007 · SIGACCESS Accessibility and Computing

  This paper describes dissertation research on improving the accessibility of pen-based devices (PDAs, Tablet PCs) for older adults by identifying and addressing the root causes of target acquisition difficulty. The author argues that previous research on target acquisition…

  aging · motor accessibility · input device · interaction design · target acquisition

• VoiceDraw: a hands-free voice-driven drawing application for people with motor impairments

  Susumu Harada, Jacob O. Wobbrock, James A. Landay · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '07)

  Harada, Wobbrock, and Landay's Assets '07 paper introduces VoiceDraw, a hands-free digital painting application for people with severe motor impairments that uses *non-speech* vocalisations — continuously-held vowel sounds and short consonant clicks — rather than discrete speech…

  motor accessibility · voice interface · non-speech vocalisation · speech recognition · vocal joystick

• Performance analysis of an integrated eye gaze tracking / electromyogram cursor control system

  Craig A. Chin, Armando Barreto, J. Gualberto Cremades, Malek Adjouadi · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '07)

  Chin, Barreto, Cremades, and Adjouadi's Assets '07 demonstration paper from Florida International University evaluates a hybrid cursor-control system that combines eye-gaze tracking (EGT) with electromyogram (EMG) input from facial muscles, targeted at users with motor…

  eye tracking · electromyogram · cursor control · motor accessibility · multimodal input

• Slipping and drifting: using older users to uncover pen-based target acquisition difficulties

  Karyn A. Moffatt, Joanna McGrenere · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '07)

  Moffatt and McGrenere present an empirical study at the University of British Columbia investigating the underlying causes of pen-based target acquisition difficulty on a Tablet PC, with explicit attention to how age affects targeting ability. Thirty-six right-handed…

  target acquisition · pen-based interaction · stylus · tablet PC · older adults

• A comparison of area pointing and goal crossing for people with and without motor impairments

  Jacob O. Wobbrock, Krzysztof Z. Gajos · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '07)

  Wobbrock and Gajos at the University of Washington present a controlled study comparing two fundamentally different target-acquisition paradigms — conventional area pointing (move into a confined region and click) and goal crossing (sweep the cursor across a goal line, no click…

  target acquisition · goal crossing · area pointing · Fitts' law · steering law

• Consolidating computer operation and wheelchair control

  Torsten Felzer, Rainer Nordmann · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '07)

  This short ASSETS 2007 demo proposal from Torsten Felzer and Rainer Nordmann at Darmstadt University of Technology describes the integration of two previously separate assistive systems they had built for people with severe physical disabilities. The first, HaMCoS (HAnds-free…

  hands-free interaction · muscle contraction · electromyography · powered wheelchair · mouse emulation

• Simulation to predict performance of assistive interfaces

  Pradipta Biswas, Peter Robinson · 2007 · Proceedings of the 9th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '07)

  This short ASSETS 2007 poster from Pradipta Biswas and Peter Robinson at the Cambridge Computer Laboratory describes a simulator for predicting how disabled users will perform on a given assistive interface, intended to reduce the dependence on hard-to-recruit disabled…

  user simulation · usability evaluation · GOMS · Model Human Processor · scanning interface

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