Unit 4 Discussion PS215 Neuroscience
Seeing Is Not Believing!
Seeing is a process that begins with the presence of light. An image is formed on the retina, and an electrical impulse is then transmitted to the brain. Perception includes many factors in addition to this seemingly simple mechanism. Our perceptions are influenced by our past experiences, imagination, and associations. Visual attention requires information to be processed in many different parts of the brain. To see an image, the brain must convert information from both the right and the left eyes and then create a steady image, and then apply meaning.
Revisit the information in your reading about optical illusions and look at the picture below.
Optical illusions occur because our brain is trying to interpret what we see and make sense of the image based on the information it has about the world around us. The information gathered by the eye is processed by the brain, creating a perception that does not match the true image.
For about 200 years, artists, psychologists, and neuroscientists have questioned if the type of illusions shown there originate in the eye or in the brain. Explain your view on how optical illusions work. Do you think optical illusions are related more to the eye or the brain? Provide your rationale.
Keywords: Optical illusions and the brain, Microsaccades, Enigma illusion, Visual systems, and optical illusions
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Unit 4 Discussion PS215 Neuroscience Answer
The optical illusion is interesting because it shows us how our brains and eye are working with one another so we can see. However, the brain is primarily responsible for vision; it creates a visual representation of the light that reflects on our eyes. Psychologists make a distinction between sensation and perception. Sensation refers to the effect of a stimulus on the sensory organs. Ward (2020) states, “The brain makes inferences during the visual perception beyond the raw information given.
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