K361 - lab 3

K361 - lab 3 - Jordan Becker K361-301 Lab #3 Visual...

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Jordan Becker K361-301 Lab #3 Visual Perception – Prism Experiment Introduction: Our senses provide us with the information about the surrounding environment. Vision, especially, provides the mind with information regarding the objects moving around the body. Many times, and under many circumstances, the mind perceives visual stimuli that may not actually represent the actual characteristics of those stimuli. One example is the phenomena of visual illusions (Muller-Iyer or Ebbinhaus-Titchener illusions) which trick the mind by using surrounding stimuli to affect the perceived size of another shape (Class notes, 2008). The effect of those illusions, along with neurological pathologies like optic ataxia and visual agnosia, are due to the fact that the brain has two visual systems. The Focal System is used to identify and recognize static objects; a visual system for perception. The Ambient System is used to identify and detect moving objects; a visual system for action. (Class notes, 2008). With such a complicated visual processing system how does the human mind identify stimuli, select responses, program that response, and then adjust for moving objects and changes in the environment? It has been suggested that a closed loop control system is used to continually
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K361 - lab 3 - Jordan Becker K361-301 Lab #3 Visual...

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