optical illusion
Post on 17-Jul-2015
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Optical Illusion
It’s your BRAIN again!
Let us start with EYESssss
1. Sclera
= Skin of the eye
= Protection
2. Cornea
= window of the eye
=refracts light
3. Iris
= the coloured part of your
eye
= control amount of light
4. Pupil
= the HOLE
Lens
= refracts and focus light
Retina
Optic Nerve
Fovea
Retina: 1. Detect light stimulus
2. Converts light detected to nerve impulses
CONES & RODS ??
Photoreceptors lahhhh
Optic Nerve
The USB cable from your eye to your BRAIN
= Send nerve impulses from retina to brain
GOT IT?
You see what your BRAIN
sees.
Easy?
HOW??
Because 50% of your brain is used for
vision!!
Massive processor, decidated for:
1. Detect
2. Analyze
3. Recognize
4. Reason with visual input
What about this?
Quick! Find the blue circle!
Optical Illusion
Limitation of sight
The shift between what your EYE see, and what your
BRAIN perceives (what you brain “see”)
What colour is this
dress??
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