Stroop Color Test
A color name appears in a different ink color. Your job: select the ink color, not the word. Harder than it sounds.
A color name appears in a different ink color. Select the ink color, not the word. This is called the Stroop effect — your brain wants to read the word instead.
The Stroop Effect
What Is It?
The Stroop effect (discovered by John Ridley Stroop in 1935) demonstrates that reading is so automatic that your brain struggles to ignore the word and focus on the ink color. This interference reveals how your brain processes conflicting information.
Why It Matters
The Stroop test measures cognitive flexibility, selective attention, and processing speed. It is widely used in psychology and neuroscience research, and even in clinical assessments for conditions like ADHD, dementia, and brain injuries.