Circular orientated display speeds up communication by gaze

Area of Science:

• Assistive Technology
• Human-Computer Interaction
• Augmentative and Alternative Communication

Background:

• Speech-generating devices (SGDs) are crucial for individuals with communication impairments.
• Traditional SGD interfaces often use grid-based symbol layouts.
• Evaluating alternative display designs is essential for optimizing user efficiency.

Purpose of the Study:

• To assess the communicative efficiency of a novel circular display for SGDs compared to a traditional grid design.
• To investigate the impact of display layout on sentence production time and accuracy using eye gaze control.
• To determine if alternative designs can enhance user performance in SGDs.

Main Methods:

• Participants used eye gaze to produce three-symbol sentences on both grid and circular displays.
• The displays contained identical communicative symbols, semantically grouped by color.
• Sentence production times and error rates were recorded for comparative analysis.

Main Results:

• The circular display design resulted in significantly faster sentence production times.
• No significant difference in error rates was observed between the circular and grid displays.
• Eye gaze control performance was positively influenced by the circular layout.

Conclusions:

• A circular display orientation can enhance the communicative efficiency of eye-gaze controlled SGDs.
• Alternative display designs beyond the conventional grid may offer improved communication outcomes.
• Further research into non-traditional SGD interfaces is warranted.