Sound-induced Illusory Flash
(Shockwave Flash version)

Shams, L., Kamitani, Y. & Shimojo, S. What you see is what you hear. Nature 408, 788 (2000).

Fixate to the cross, and press one of the buttons. A disk is flashed (always once), accompanied by a different number of beeps (zero, once or twice). You may see more than one flashes with two beeps.

You may need to press the button several times before the disk and beeps are properly presented. The demo may not work on slow computers. Download Shockwave Flahs Player if not installed:

Quicktime version
Shimojo Lab at Caltech
Ladan Shams

Created by Yukiyasu Kamitani,
Last Modified: Jan 2, 2002.

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