Saccade

A saccade is a rapid eye movement that relocates the point of fixation, typically completed within 20 to 100 milliseconds depending on amplitude, with visual processing suppressed for a brief period during the movement itself. Carpenter (1981) proposed the LATER model (Linear Approach to Threshold with Ergodic Rate), showing that saccadic reaction time can be explained by a signal rising linearly toward a fixed threshold at a rate that varies trial to trial, a framework that predicts both the average and the full distribution shape of saccadic latencies from a small number of parameters.

Reference: Carpenter, 1981. The NeuroRank implementation holds the canonical form and scales interference via task-irrelevant stimulus density.

1. Glancing to the minimap to check a rotation, then saccading back to re-acquire the crosshair's previous target location.
2. Checking the kill-feed mid-fight and saccading back into the engagement without losing track of position.
3. A peripheral flicker triggering a saccade toward the edge of the screen to verify whether a target is real before committing a response.

NeuroRank does not track raw eye movement, since a browser-based combine has no eye-tracking hardware. The Flicker and Aim modules' response times still absorb the saccadic component of total reaction time, and targets placed at the edge of the play area increase that component relative to central targets.