Psychology / Unit 4 Psych 0409 short lesson, about 20 seconds
The Optic Nerve and Optic Chiasm
Captions available
The idea
The optic nerve carries visual signals from each eye to the optic chiasm, where fibers from the inner halves cross to the opposite hemisphere.
In practice
Signals from the left half of each visual field arrive at the right hemisphere after the crossing.
Where people slip
The split is by visual field, not by eye. Each eye sends information to both hemispheres.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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