Making computers easier for older adults to use: area cursors and sticky icons
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
Manual and gaze input cascaded (MAGIC) pointing
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Acquisition of expanding targets
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Human on-line response to target expansion
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Designing computer systems for older adults
The human-computer interaction handbook
Semantic pointing: improving target acquisition with control-display ratio adaptation
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Object pointing: a complement to bitmap pointing in GUIs
GI '04 Proceedings of the 2004 Graphics Interface Conference
The bubble cursor: enhancing target acquisition by dynamic resizing of the cursor's activation area
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
International Journal of Human-Computer Studies - Special issue: Fitts law 50 years later: Applications and contributions from human-computer interaction
Effect of age and Parkinson's disease on cursor positioning using a mouse
Proceedings of the 7th international ACM SIGACCESS conference on Computers and accessibility
Fitts' law and expanding targets: Experimental studies and designs for user interfaces
ACM Transactions on Computer-Human Interaction (TOCHI)
Human on-line response to visual and motor target expansion
GI '06 Proceedings of Graphics Interface 2006
Developing steady clicks:: a method of cursor assistance for people with motor impairments
Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility
An evaluation of sticky and force enhanced targets in multi target situations
Proceedings of the 4th Nordic conference on Human-computer interaction: changing roles
Slipping and drifting: using older users to uncover pen-based target acquisition difficulties
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Simple pen interaction performance of young and older adults using handheld computers
Interacting with Computers
Ninja cursors: using multiple cursors to assist target acquisition on large screens
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Bringing the target to the cursor: proxy targets for older adults
CHI '08 Extended Abstracts on Human Factors in Computing Systems
PointAssist: helping four year olds point with ease
IDC '08 Proceedings of the 7th international conference on Interaction design and children
The angle mouse: target-agnostic dynamic gain adjustment based on angular deviation
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Rake cursor: improving pointing performance with concurrent input channels
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Exploring Methods to Improve Pen-Based Menu Selection for Younger and Older Adults
ACM Transactions on Accessible Computing (TACCESS)
Speeding pointing in tiled widgets: understanding the effects of target expansion and misprediction
Proceedings of the 15th international conference on Intelligent user interfaces
Exploring the accessibility and appeal of surface computing for older adult health care support
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Pointassist for older adults: analyzing sub-movement characteristics to aid in pointing tasks
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
User specific design of interfaces and interaction techniques: what do older computer users need?
UAHCI'07 Proceedings of the 4th international conference on Universal access in human computer interaction: coping with diversity
The satellite cursor: achieving MAGIC pointing without gaze tracking using multiple cursors
UIST '10 Proceedings of the 23nd annual ACM symposium on User interface software and technology
Cursor relocation techniques to help older adults find 'lost' cursors
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
From the lab to the world: lessons from extending a pointing technique for real-world use
CHI '11 Extended Abstracts on Human Factors in Computing Systems
The barriers that older novices encounter to computer use
Universal Access in the Information Society - Special Issue: Innovations in user sensitive design, research and development
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Elderly text-entry performance on touchscreens
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
Proceedings of the 19th international conference on Intelligent User Interfaces
| Hi-index | 0.00 |
Point and click interactions using a mouse are an integral part of computer use for current desktop systems. Compared with younger users though, older adults experience greater difficulties performing cursor positioning tasks, and this can present limitations to using a computer easily and effectively. Target expansion is a technique for improving pointing performance where the target grows dynamically as the cursor approaches. This has the advantage that targets conserve screen real estate in their unexpanded state, yet can still provide the benefits of a larger area to click on. This article presents two studies of target expansion with older and younger participants, involving multidirectional point-select tasks with a computer mouse. Study 1 compares static versus expanding targets, and Study 2 compares static targets with three alternative techniques for expansion. Results show that expansion can improve times by up to 14%, and reduce error rates by up to 50%. Additionally, expanding targets are beneficial even when the expansion happens late in the movement, that is, after the cursor has reached the expanded target area or even after it has reached the original target area. The participants’ subjective feedback on the target expansion are generally favorable, and this lends further support for the technique.