Synesthesia and the Binding Problem

For a synesthete, certain stimuli or the thought of certain con-cepts may be accompanied by perceptual qualities not normally experienced by most people (e.g., Cytowic, 1997). For some synesthetes, letter shapes may induce a color (e.g., A is red, B is blue); others may experience gustatory qualities when hearing words ("Jeremy " tastes like shellfish con-somme), or see moving colored shapes when listening to music (e.g., Sibelius's "Valse Triste " may evoke the sight of slowly drifting pink dots). These corre-spondences are consistent across time and idiosyncratic, though some trend