I got this picture I generated myself and I don't understand how come we can see two diagonal lines when, I think, there is no actual lines. Zooming in: Center: Just another 2px wide square… ...
It's well known today that the susceptibility to optical illusions are influenced by the environment: multiple studies with the Müller-Lyer illusion conducted in Zambia proved this environmental ...
What color is this dress? — And why do some see it as white and gold and others see it as black and blue?
Here's the dress (and keep reading, this is actually a serious question): This question about this image has apparently become quite a rapidly spreading meme on the internet. And after conducting ...
Adaptation is a very robust feature of sensory processing: when a stimulus is displayed for a prolonged period, or repeatedly, the neural response to it will diminish. This process creates a local ...
What's the explanation of this optical illusion where many coloured arcs radiate from a central point?
I saw the image below on facebook. At first, I thought it's a GIF animation since it doesn't appear static but it turned out to be a static JPEG image and the apparent motion is caused by the brain. ...
I've kind of already answered this question for myself, but I can't resist sharing it anyway. Please feel welcome to add anything you can in another answer. Stare at the cross in the middle and try ...
I just found this remarkable optical illusion: To do: Fixate your gaze on the center of one of the figures and stare at it for some time (20-30 seconds) while it cycles (without moving your eyes). ...
The human brain adapts to a constant stimulus of our neural system. For instance, if we ride a train and look out of the window for a long time and the train stops, we have the feeling of slowly ...