Research in cognitive neuroscience indicates that the resolution of optical illusions increases neural efficiency, with ...

Only 9% of people can correctly identify the colours in a black-and-white illusion with diagonal coloured lines. This visual ...

Test your IQ with this viral optical illusion! Can you spot the hidden animal in just 5 seconds? Only the sharpest minds can ...

READ ALSO: Optical Illusion: Squint or hold away your phone, what do you see? Some illusions exploit the brain’s reliance on certain visual principles, such as depth perception or size constancy.

But this mind-boggling optical illusion might be his most bizarre appearance ... drinking coffee beside a busy road. However, if you squint your eyes, this should triggers an illusion that tricks ...