Empirical evaluation of circling interface with head-mounted mouse emulator users

Area of Science:

• Human-Computer Interaction
• Assistive Technology
• Rehabilitation Engineering

Background:

• Traditional pointing devices can be challenging for individuals with motor impairments.
• Existing assistive technologies like dwell-clicking have limitations in speed and efficiency.

Purpose of the Study:

• To evaluate the performance and user satisfaction of a novel circling interface for on-screen object selection and manipulation.
• To compare the circling interface with traditional dwell-clicking software for users with specific physical disabilities.

Main Methods:

• Empirical evaluations were conducted with head-mounted mouse emulator users.
• Participants included individuals with spinal cord injury (SCI) and cerebral palsy (CP).
• Performance was measured on pointing tasks using both the circling interface and dwell-clicking software.

Main Results:

• The circling interface demonstrated faster overall performance for both SCI and CP groups compared to dwell-clicking.
• While slower for single-clicks, the circling interface was faster for double-click and drag-and-drop operations.
• Automatic error correction in the circling interface significantly improved accuracy without a steep learning curve.

Conclusions:

• The circling interface provides a more efficient alternative to dwell-clicking for individuals with pointing difficulties.
• This technology can be integrated with existing methods to enhance computer access and augmentative communication.
• The circling interface offers significant potential to improve clinical practice and user experience for assistive technology users.