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Do illiterates have illusions? A conceptual (non)replication of Luria (1976)

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Van Paridon,  Jeroen
Psychology of Language Department, MPI for Psycholinguistics, Max Planck Society;
International Max Planck Research School for Language Sciences, MPI for Psycholinguistics, Max Planck Society;

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Ostarek,  Markus
Neurobiology of Language Department, MPI for Psycholinguistics, Max Planck Society;

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Huettig,  Falk
Psychology of Language Department, MPI for Psycholinguistics, Max Planck Society;

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Citation

Arunkumar, M., Van Paridon, J., Ostarek, M., & Huettig, F. (in press). Do illiterates have illusions? A conceptual (non)replication of Luria (1976). Journal of Cultural Cognitive Science.


Cite as: http://hdl.handle.net/21.11116/0000-0008-7C3C-B
Abstract
Luria (1976) famously observed that people who never learnt to read and write do not perceive visual illusions. We conducted a conceptual replication of the Luria study of the effect of literacy on the processing of visual illusions. We designed two carefully controlled experiments with 161 participants with varying literacy levels ranging from complete illiterates to high literates in Chennai, India. Accuracy and reaction time in the identification of two types of visual shape and color illusions and the identification of appropriate control images were measured. Separate statistical analyses of Experiments 1 and 2 as well as pooled analyses of both experiments do not provide any support for the notion that literacy effects the perception of visual illusions. Our large sample, carefully controlled study strongly suggests that literacy does not meaningfully affect the identification of visual illusions and raises some questions about other reports about cultural effects on illusion perception.