Psychophysics Sandbox

Dot Motion Lab

A minimal motion coherence task for teaching agentic coding and behavioral analysis.

Keys Left / Right Arrow

Stimulus 1.5 s

Dots 250

Stimulus

Press start to run a randomized block.

Press Start

Trial 0 / 0

Coherence -

Accuracy -

RT -

Accuracy by coherence level.

Idle

Coherence	Trials	Accuracy

Stimulus (ms) Inter-trial (ms) Trials / level Dots Dot speed (px/frame) Coherence levels (comma-separated)

Settings apply when you start a new block.

Tip: For teaching, ask the agent to add a practice block or change coherence spacing, then compare plots.