PSYA01H3 Lecture Notes - Lecture 11: Ganglion, Vitreous Body, Critical Role
Document Summary
From the outside world, we get info (light, sound, etc), which forms a sensation (raw data) on receptors (eyes, skins, etc. ); then we get perception in the brain (interpretation of raw data) When we see a picture, we see a lot of info that is not there because it comes from memory after seeing the patterns of light and shadow. Input from the raw world (bottom-up info) and memory systems to recognize it (top-down info) Taste and smell are on the cortex but very close to the midbrain so they are very primitive. There are a wide range of wave frequencies in the world but we only see a tiny little band of them with our eyes humans don"t sense all there is to sense, we are limited. Bats have echolocation, sharks sense minute electrical currents, rattlesnakes are sensitive to low frequency vibrations, dogs can smell cancer.
