PSYA01H3 Lecture Notes - Lecture 12: Retina, Opponent Process, Ganglion Cell
Document Summary
Sensation - (raw data) picking energy from external world to inside. Our memories analyze the incoming signal and are changing it by allowing them to make sense to us. Mixing raw input with memories and past experiences to produce perception. Perception is an interpretation of the data. At sensory levels, this is just lights. At perception level, you know its fireworks at niagara falls. Humans do not sense all there is to sense; bats have echio-location, sharks sense multiple electrical currents, rattlesnakes are sensitive to low frequency vibrations, dogs can smell cancer. Iris - the coloured part of your eye It is actually a muscle that controls the size of your pupil. Pupil: the black part in the middle of the eye the opening that allows light into the eyeball. Sclera: the white part of the eye a tough membrane that serves as protection.
