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1) What is the main conclusion(s) of the article?

The article Perceiving Shape from Shading by Vilayanur S. Ramachardran is about how the brain takes 2 dimensional images and then uses various cues and is able to determine depth. The brain analyzes things such as light sources, brightness, and mostly shading in order to determine depths, shapes, and other things in order to decipher and image. After conduction experiments researchers had found two conclusions. One conclusion is that in order to determine the shape of something based off of shading a person must view it in a large or full visual field. The second conclusion that researchers found is that the visual system perceives one light source and they hypothesize that this is because brains evolved in a solar system with one main light source, the sun. 2) Were the hypothesis and/or the conclusions supported by the results or articles present?
The hypothesis and conclusion in the article Perceiving Shapes from Shading by Vilayunar S. Ramachardan are both supported by the results of the experiments and research gathered. The brain requires shading and light in order to decipher an image. By using the shading and light the brain is able to figure out both the shape and depth of an object. 3) Do you agree or disagree with the researchers assertions? Why or why not?

After reading and reviewing the article Perceiving Shape from Shading I agree with the researcher’s assertions. The reasons that I agree with what the researchers ascertained is because of the experiments and data in which they gathered and analyzed. The brain needs certain information in order to learn an objects depth and shape and without any information to refute the research gathered I must agree with what the researchers found and published. 4) How does this article relate to class material, particularly the chapter it relates to?

The article Perceiving Shape from Shading relates to the class material pertaining to vision, mostly chapter 4, Sensation and Perception. Sensation and Perception is about the visual system and senses. This chapter relates to the article written by Vilayanur S. Ramachandran because both deals with the both the visual system and perception. The chapter details the eye and what it perceives about shapes and other thing in which a person views. The article is about shapes and what the brain perceives of them and what it does in order to see shapes and depth.

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