A field of dots will move briefly in a general direction, mixed with random noise dots. Identify which direction they moved. 10 rounds, gets harder.
This "random dot kinematogram" task is one of the most widely used paradigms in vision science for measuring motion sensitivity, developed by researchers including William Newsome in the 1980s to study how the brain's MT/V5 visual area processes motion. Your brain has to pool weak, noisy signals from many individual moving dots - some genuinely coherent, most just random noise - to extract a single overall direction of movement.
This same brain area is what lets you instantly perceive a flock of birds turning together, a crowd shifting direction, or an opponent's overall movement pattern in a fast sport - even when individual elements within that group are moving somewhat randomly. The "coherence" percentage in this test (how many dots move together vs. randomly) directly maps to the exact variable vision scientists manipulate in lab studies of this brain region.
Random dot motion tasks like this one remain a gold-standard tool in visual neuroscience for studying how single neurons in area MT respond to motion signals, and they're also used clinically to assess motion perception deficits in certain neurological and visual conditions.
Don't try to track individual dots - defocus slightly and let the overall pattern emerge from the noise.
Motion pooling improves the longer you observe - resist answering based on the first split-second impression.
Motion coherence detection improves with practice, similar to contrast sensitivity - repeated exposure sharpens the threshold.
Vision science students, sports scientists studying dynamic visual perception in team sports, and anyone curious about how their brain extracts motion signals from noisy visual scenes will find this test a genuine, research-grounded benchmark of that ability.
It's the percentage of dots moving together in the true direction versus randomly - lower coherence means a noisier, harder signal to extract, which is why later rounds get tougher.
At low coherence levels, motion perception genuinely becomes probabilistic - this mirrors real lab findings where even trained observers approach chance performance near the coherence threshold.
Yes, completely free with 10 rounds per attempt and instant percentile scoring.
It measures how accurately and quickly you can identify the direction a group of moving dots or objects is traveling, testing motion perception in your visual system.
Motion direction is primarily processed in visual area MT/V5, a region specialized for detecting movement and direction in the visual field.
Random dot kinematograms let researchers precisely control how much 'signal' motion is embedded in random noise, isolating pure motion-detection ability.
Yes, sensitivity to motion direction, especially for fast or low-contrast movement, tends to decline gradually with age.