The Simon Effect: Why Your Brain Craves Spatial Alignment
Scientifically Reviewed · Dr. Marwa Abd-Alazim · August 17, 2026
Medically & Scientifically Reviewed
Verified: August 17, 2026
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seen in a 2 choice task where the response is faster if the location of the stimulus is better than if it is not. If a left key press is a response then the key should be on the left side.
SIMON EFFECT: “The Simon effect has been attributed to automatic activation of the corresponding response.”