BRAIN EXERCISE — VISUAL & ATTENTION

Visual-attention and spatial-reasoning games drawn from neuropsychological assessment paradigms: multi-object tracking, peripheral-flash detection, conjunction visual search, mental rotation (Shepard-Metzler style), and the Trail Making Test parts A and B used clinically for executive-function screening.

Multi-object Dot Tracking presents N targets among distractors, all moving; users mark the targets after movement stops. Peripheral Vision flashes a stimulus briefly at varying eccentricity from a central fixation. Visual Scan demands a target-among-distractors decision under time pressure. Mental Rotation shows two 3D figures and asks "same or mirror." Trail Making asks users to connect numbered (Part A) or alternating number-letter (Part B) targets in order, with timing as the score.