Sound-Induced Flash Illusion - 14/52

sound induced flash

I love optical illusions so I thought I would share a few of my favorite and with many people opting to take up 365 day challenges i thought i would try a 52 week challenge in which i will share with you a different Illusion every week. so if you have any you would like me to feature get in touch.

Another sound illusion, the Sound-Flash Effect is a cross-modal illusion in which what you experience visually is affected by what you hear. It is the result of asynchronous visual and auditory stimuli.

Watch the video below with the sound on. Each time a disk appears, how many times does it seem to flash?

The disk always flashes once. Sometimes it is accompanied by one beep, and then people report one flash. However, when it is accompanied by two beeps some people report experiencing two flashes

In the Sound-Induced Flash illusion, what you visually experience is affected by what you hear. The illusion was discovered and studied by Ladan Shams and colleagues (Shams et al. 2000). As can be seen in the video above, although the same number of dots flashes on the screen when one and two beeps are sounded, when there are two beeps, people frequently report experiencing two flashes. Shams and colleagues hypothesise that the “alteration of the visual percept is due to cross-modal perceptual interactions as opposed to cognitive, attentional, or other origins” (Shams et al. 2002).

What are the best optical illusions you've found on the web? Do you have more amazing examples you don't see here?

Share your thoughts with us in the comments section below.