The Visual System. Light. Enters the eye as electromagnetic radiation Travels in a wave that vary in amplitude (height) and wavelength (between peaks) Amplitude= brightness Wavelength= color (hue). Humans see a mixture of several wavelengths Varies purity Small portion of the spectrum.
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I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. It dseno’t mataetr in what oerdr the ltteres in a word are, the olny iproamtnt tihng is taht the frsit and lsat ltter be in the rghit pclae.
ImageRelationship Between Perceived Size and Perceived Depth
This figure shows that image size depends upon both object size and distance
From the time their eyes first opened, and until the age of 5 months, these kittens were removed from darkness each day to spend 5 hours alone in a black-and-white striped cylinder with a clear glass floor. A stiff collar prevented the kittens from seeing anything else, even their own bodies. Afterward, these kittens had difficulty perceiving horizontal forms, compared with other kittens exposed only to horizontal forms.
Most people think segment AB equals BC. In reality AB is much longer than BC.
Click below to view a video of how this works:
Muller-Lyer Illusion Explanation
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When in fact it is a trapezoid!
We perceive the room to be as we are used to, a perfect square or rectangular.
See how this and others like it are done
Is this 3-D?
Heads or Houses?
In or out of the picture?