CAS PS 222 Lecture 2: Lecture 2
12 Nov 2018
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Document Summary
There is a difference between what is in the world and what we perceive to be in the world. What is in the world: light, sound, chemicals, pressure, heat. Everything that we experience is our brains making sense of what is out there in the world. Perception depends on what your sense organs sense and what your brain does with that information. It"s important to make a distinction between what is there and what we perceive. Different animal species perceive objects in the different ways. Our perceptional experience is dependent on the sense organs that we have, and the processes of the brain. Bats send out high frequency impulses and use echolocation, they have extremely sensitive hearing therefore their sense organs are different than humans". Different creatures perceive the world differently because of their needs for survival. The evolution of the eye (clip): our eyes initially evolved to see in water.
