Figure 1.

Colour consistency scores of each subject and both groups. During the colour consistency test, participants were presented with randomly presented tones and had to choose from a colour palette the colours that best matched their synesthetic experience. Blue = CH synesthetes; red = controls.

J√§ncke et al. BMC Neuroscience 2012 13:151   doi:10.1186/1471-2202-13-151
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