Glossary

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Gaze Typing(also: Eye Typing, Gaze-Based Text Entry, Eye-Typing)

A text input method that uses eye tracking technology to allow users to type by looking at keys on a virtual on-screen keyboard. The most common technique is dwell-based selection, where the user fixates on a letter for a set duration (typically 300-1000 milliseconds) to select…

Gestural Interaction(also: Gesture-Based Interaction)

A mode of human-computer interaction in which users control systems through movements of the body — hands, arms, head, eyes, or whole body — captured by sensors such as accelerometers, cameras, IMUs, or depth sensors. Gestural interaction supports hands-free or low-force control…

Ghost Cursor(also: Phantom Cursor, Proxy Cursor)

A visual indicator displayed on screen that shows a potential cursor position, used in speech-based and alternative cursor movement systems. Multiple ghost cursors can be displayed simultaneously, typically aligned in a row or column, allowing users to quickly specify an…

Grid-Based Navigation(also: Grid Navigation, Grid Cursor Control)

A speech-controlled cursor positioning technique that divides the screen into numbered regions, allowing users to select progressively smaller areas by speaking numbers until the cursor reaches the target location. This alternative input method enables people with upper-body…

Gross Motor Movement(also: Gross Motor Skills, Gross Motor Control)

Large body movements involving the major muscle groups of the arms, legs, and torso, as opposed to fine motor movements that require precise control of small muscles in the fingers and hands. In assistive technology, the distinction between gross and fine motor abilities is…

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