Orientation Discrimination Training
Three Gabor patches appear below. Two share the same orientation — find the one that's different. As you improve, the difference shrinks. How far can you go?
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The Visionary app includes 14+ adaptive exercises, progress tracking, and a personalized 21-day training protocol.
What Is Orientation Discrimination?
How V1 Neurons Work
Your primary visual cortex (V1) contains neurons that are exquisitely tuned to specific orientations. Each neuron fires maximally when it detects a line or edge at its "preferred" angle. This training strengthens those neural responses.
Why This Works
Research by Polat et al. (2004) and UC Berkeley (2012) demonstrated that training orientation discrimination with Gabor patches produces lasting improvements in visual acuity — your brain literally gets better at processing fine details.
Real-World Benefits
Improved orientation discrimination helps your brain resolve fine text, edges, and details — which translates directly to better reading ability and reduced eye strain in everyday activities.
Adaptive Difficulty
This training uses a 3-down, 1-up staircase algorithm — the same method used in clinical research. Three correct answers in a row makes it harder; one mistake eases it back. You're always training at your optimal threshold.