By about 4 months of age, a baby will be able to perceive depth of vision that was not possible to do earlier. (newbornbabyzone.com)
But in rare cases, we may perceive depth in its physical absence. (sfaq.us)
This painting works because the objects are life - size and depicted in hyper - realistic detail, and also because Remps laid a set of decoys that hoodwink our visual system into perceiving depth, says Priscilla Heard, a neuropsychologist at the University of the West of England in Bristol, UK. (newscientist.com)