BETA
Chapter 1
The gateway of light
Chapter 2
The brain's darkroom
Chapter 3
The spectrum of color
Chapter 4
Vision variations and future tech
YOUR GOAL
Master of How the human eye sees
Ch 2 · The brain's darkroom
artiteacher Rotate the upside-down images to discover how your brain flips what you see.
artiteacher The brain's darkroom
World falls upside down, / hits the retina, / brain turns it around!
artiteacher Cones pack into the center of the retina, requiring bright light to resolve fine details and vibrant colors.
artiteacher Rods are highly sensitive photoreceptors that detect shapes and motion in dim light but cannot perceive color.
Fun Fact
Blind spot: Each of your eyes has a blind spot where the optic nerve exits the retina, but your brain seamlessly fills in the missing data.
Glossary
visual cortex (noun)
The region of the cerebral cortex that receives and processes impulses from the optic nerves. In 1981, David Hubel and Torsten Wiesel won a Nobel Prize for mapping these visual pathways.
The region of the cerebral cortex that receives and processes impulses from the optic nerves. In 1981, David Hubel and Torsten Wiesel won a Nobel Prize for mapping these visual pathways.
Quiz
In which specific central area of the human retina are cones most densely packed?
Quiz
How does the image of the world first land on the human retina before processing?
Quiz
Which part of the human brain is primarily responsible for processing visual information?
Quiz
Which photoreceptors in the human retina are responsible for seeing in low light?
Quiz
What type of energy do human photoreceptors convert light into for brain transmission?