PSYCH 1XX3 Lecture Notes - Lecture 4: Transcranial Magnetic Stimulation, Brain Damage, Visual Cortex
27 Feb 2017
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Document Summary
Humans rely more on vision than any other sense. It begins with light gathering in the eye, visual processing actually occurs in the brain. Difference between sensation and perception: sensation conversion of sensory into nerve impulses, perception our brain converting our nerve impulses. Each of our sensory systems has a different way of converting energy. Vibrating sounds from environment are caught by our ear. Light photoreceptor photo-activation neural activity awareness. Not all of it reaches to our awareness. Image at the back of the retina is flipped. Brain has learnt and evolved to interpret the signals at the retina. Visual shifts results from adaptation of signals coordinating visual and motor systems. A lot less errors made after 20 minutes. People start to make errors in the opposite direction. Within 20 minutes, an adaptation made to the new stimulus. Learning hand-eye coordination is a critical collaboration between both visual and motor systems working together.
