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Eliminating the Stroop Effect

Eliminating the Stroop Effect. Meredith Hughes, Grade 9. Problem. Can warping the shape of words written in different colors eliminate the Stroop effect?. Research. Dr. John Ridley Stroop discovered the Stroop effect in 1935.

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Eliminating the Stroop Effect

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  1. Eliminating the Stroop Effect Meredith Hughes, Grade 9

  2. Problem • Can warping the shape of words written in different colors eliminate the Stroop effect?

  3. Research • Dr. John Ridley Stroop discovered the Stroop effect in 1935. • The Stroop effect is the signals that are sent to the brain when a person is reading the color of a written word. • Differences in required attention cause reading the colors in which words are written to take longer than reading the word. • The anterior cingulate gyrus is the part of the brain between the left and right halves that controls “executive functions” such as the Stroop effect. • Executive functions are activities that involve either memory, attention, problem-solving, or multi-tasking. • Cognitive flexibility is the ability of the brain to rearrange data in accordance to the situation. • Many scientists believe that by warping the shape of the words written, the Stroop effect can be eliminated.

  4. Hypothesis • If words are warped, then the Stroop effect will be negated. • Many scientists believe that warping the shape of the words written can lessen the difference in signals sent to the brain and therefore make executive functions easier to perform.

  5. Materials: • 20 volunteers • 1 homemade Stroop test • 1 warped Stroop test from http://www.sciencebuddies.org/science-fair-projects/project_ideas/HumBeh_p029.shtml • 1 stopwatch

  6. Test A Test B Test A: Please state the color of the ink in the following words. Test B: Please state the color of the ink in the following figures.

  7. Procedure • 1. The Stroop tests were produced. • 2. Twenty volunteers were found. • 3. Volunteers were split into four groups of five people. • 4. One group was tested on the regular Stroop test. • 5. Three groups were tested on the warped Stroop test. • 6. Data was recorded and organized. • 7. Data was averaged and the standard deviation was found. • 8. Results were concluded.

  8. Variables • Control: the regular Stroop test • Constants: same stopwatch, same tests for each person in the group, 25 total figures in each test • Independent Variable: the Stroop test with warped words • Dependent Variable: The outcome of the tests; the difference in reading time averages between the two tests

  9. Dataaverage of All groups with standard deviation

  10. DataComparison: Test A vs. Test B with standard deviation

  11. Conclusion • The hypothesis of “If words are warped, then the Stroop effect will be negated” was not supported by this experiment. • Advancements that could be taken to improve this experiment include more volunteers with a wider range of age, gender, and level of intellect. • Possible flaws of this experiment include the fact that all of the volunteers were high school females.

  12. Acknowledgements • Works Cited: • http://www.sciencebuddies.org/science-fair-projects/project_ideas/HumBeh_p029.shtml • http://faculty.washington.edu/chudler/words.html • http://snre.umich.edu/eplab/demos/st0/stroopdesc.html • http://www.amenclinics.com/clinics/Professionals/how-we-can-help/brain-science/anterior-cingulate-gyrus-acg/ • http://www.ncbi.nlm.nih.gov/pmc/articles/PMC53241/ • Thank you for your attention. Please feel free to ask me any questions that you may have.

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