PSYCH 1XX3 Lecture Notes - Lecture 5: The Blind Spot, Action Potential, Neuroplasticity
9 Feb 2017
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Document Summary
Humans rely on vision more than any other sense. Although it begins with light gathering in the eye, visual processing occurs in the brain. In this class, we explore the assumptions made by the brain and the development of two separate pathways. Goggle study: wear vision-altering goggles for a week. About halfway through the week, things began to look normal again: after removing the goggles, the original world was flipped, neuroplasticity: brain is able to learn and adapt to the world. The brain makes assumptions and fills in the blanks . Perception fills in the world of unattended and missing information: the blind spot is filled in by the context. We only pay attention to a limited set of information in the environment: change blindness: even with direction focus, attention leads us to miss information. Attention is a dialogue between bottom-up and top-down processing. Brain always assumes a singular light source that comes from above.
