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Shape Stroop

Spatial Variant

What is this?

Shape words appear inside conflicting geometric shapes. Name the shape, not the word. For instance, the word "CIRCLE" might appear inside a square. This variant demonstrates that semantic conflict extends to spatial and geometric categories, not just colors.

What does it measure?

Shape-word interference, similar to picture-word but with geometric shapes. This variant tests whether the automatic reading of shape names can interfere with the controlled process of identifying geometric forms, broadening our understanding of which visual categories are susceptible to Stroop-like interference.

How it works

  1. 1A shape word (CIRCLE, SQUARE, TRIANGLE, etc.) appears inside a geometric shape.
  2. 2Name the SHAPE, not the word written inside it.
  3. 3For example, if "CIRCLE" is written inside a square, the answer is square.
  4. 4Respond as quickly and accurately as possible for each trial.
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Fun fact

Shape-based Stroop stimuli (eStroop) have been validated as producing measurable interference comparable to color-word variants. This validates the broader principle that Stroop interference is not specific to color — it occurs whenever automatic and controlled processes conflict, regardless of the stimulus domain.

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