The Simon task and effect, first identified by J. R. Simon and his colleague in 1963, demonstrate that people react more swiftly and accurately when the characteristics of a stimulus and its response align, such as both occurring on the same side of the body. This phenomenon is part of the broader category of stimulus-response compatibility effects. It is similar to the Stroop effect in highlighting the challenges experienced during a mismatch between a stimulus and its response, which is easily noticeable.

Supported VR Device Types via SteamVR

* Vive

* Oculus

Because all creation and editing functionalities are accessible through the Unity Editor, no coding is required to create and run a custom questionnaire in a scene.

For further reading, see:

Simon, J.R. and Wolf, J.D. (1963). Choice reaction times as a function of angular stimulus-response correspondence and age. Ergonomics, 6, 99-105.

Hommel, B. (1993). Inverting the Simon effect by intention: Determinants of direction and extent of effects of irrelevant spatial information. Psychological Research, 55, 270-279.

Prinz, W. & Hommel, B. (2002). Common mechanisms in perception and action: Attention and Performance, Vol. XIX. Oxford: Oxford University Press.

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