Cursor Control

The ability to direct and position an on-screen cursor or pointer using an input device such as a mouse, trackball, touchpad, joystick, or eye tracker. Cursor control is a fundamental requirement for interacting with graphical user interfaces and involves both gross movements (moving the cursor across the screen toward a target) and fine movements (precisely positioning the cursor on a target for selection). People with motor impairments — including conditions such as cerebral palsy, ataxia, muscular dystrophy, and tremor — often experience significant difficulties with cursor control, exhibiting irregular movement paths, overshooting targets, unintended direction changes, and slower task completion times. Research into cursor movement patterns has led to assistive techniques such as gravity wells, movement smoothing, enlarged targets, and haptic feedback to improve pointing accuracy and reduce fatigue.