Instructions: When you see the purple circle at center-screen, press SPACEBAR (desktop) or tap it (touchscreen) as fast as possible. Purpose: Measure raw reaction time with a central stimulus.
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Spatial Raw Reaction Time Lvl 1
Instructions: When you see the purple circle at random points in the area, press SPACEBAR (desktop) or tap the circle (touchscreen) as fast as possible. Purpose: Measure raw reaction time with spatially random stimulus.
