The dancer (animation)

Silhouette Illusion (3D animation by Nobuyuki Kayahara 2003)

The dancer - original title Silhouette Illusion - is the title of a graphically animated , bistable tilting figure of a woman silhouette who appears to be turning pirouettes . The animation was created in 2003 by web designer Nobuyuki Kayahara. It actually does not contain any depth information - partly because it is a parallel projection - and can therefore be perceived as turning to the left or right. An optical illusion is thus created, similar to the effect of the " Necker cube ".

Triggered by an article in the Australian Daily Telegraph , this animation spread through the blogosphere from 2007 - initially as an alleged psychological test that was supposed to prove which half of the brain is dominant in the viewer based on the perceived direction of rotation .

Web links

Commons : Spinning Dancer illusion - collection of graphics

Nobuyuki Kayahara: Flash Laboratory: Silhouette Illusion. In: procreo.jp. 2003 (Japanese, with video).
Tara Parker-Pope: The Truth About the Spinning Dancer In: New York Times. April 28, 2008 (English).

Individual evidence

↑ Nobuyuki Kayahara: Flash Laboratory: Silhouette Illusion. In: procreo.jp. 2003, Retrieved August 12, 2019 (Japanese, with video).
↑ Message: The Right Brain vs Left Brain. In: Daily Telegraph . October 4, 2007, accessed August 12, 2019.
^ Steven Novella: Neuroscience: Left Brain - Right brain and the Spinning Girl. In: NeuroLogica Blog. October 11, 2007, accessed on August 12, 2019 (English; discussion contribution).

[1] Nobuyuki Kayahara: Flash Laboratory: Silhouette Illusion. In: procreo.jp. 2003, Retrieved August 12, 2019 (Japanese, with video).

[2] Message: The Right Brain vs Left Brain. In: Daily Telegraph . October 4, 2007, accessed August 12, 2019.

[3] Steven Novella: Neuroscience: Left Brain - Right brain and the Spinning Girl. In: NeuroLogica Blog. October 11, 2007, accessed on August 12, 2019 (English; discussion contribution).