The Synesthesia Battery

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Texsyn Toolbox: Freeware Synesthesia Battery for MATLAB

To standardize synesthesia testing and scoring, I am offering a collection of MATLAB programs developed in my lab over the years for public domain use. You must have MATLAB installed on your system to use use these programs. Once you have that, everything else you need is included in the zip file at the bottom of this page.

A brief description of each of the programs can be found in the help files of the scripts. Additionally, a description of each program will be published here soon.

Download the zip file of the Texsyn Toolbox here. Install it with your other toolboxes in MATLAB, and be sure to set your MATLAB path so it can see it.

If you are publishing results derived from the online Synesthesia Battery or the Texsyn Toolbox, please cite: David M. Eagleman, Arielle D. Kagan, Stephanie S. Nelson, Deepak Sagaram, Anand K. Sarma. A standardized test battery for the study of Synesthesia. Journal of Neuroscience Methods, 2007 Jan 15;159(1):139-145. [Click here for pdf]. Please report any bugs in the online software or the MATLAB software to

For further information on the Synesthesia Battery and the details of how it is scored, please refer to Eagleman, DM, Sagaram, D, Sarma, AK, A standardized test battery for the study of Synesthesia. Center for Synesthesia Internal Report. Oct, 2005 and or email us at