Image:Synaesthesiatest.jpg

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[edit] Summary

This image demonstrates the logic of one test used to demonstrate the reality of synesthesia. On the left is the image presented to participants, in which a triangle composed of 2s is embedded among a field of 5s. For non-synesthetes this triangle would be hard to identify (displays were presented for one second). However, for someone who experiences 2s as red and 5s as green, the triangle should be more easily identified. Subsequent research (see Hubbard et al., 2005; Hubbard and Ramachandran, 2005) has shown that this effect is not true of all synesthetes.

Edward M. Hubbard, Image first appeared in Ramachandran and Hubbard, 2001. As author's own work, journal has granted permission for use on Wikipedia and creative commons projects.

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I, the copyright holder of this work, hereby publish it under the following licenses: Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. Subject to disclaimers. This work is licensed under the Creative Commons Attribution 2.5 License. You may select the license of your choice.

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