The Physics Of The Optical Brain - 977 Words

The Optical Brain Did you know about 40% or more of the human brain is thought to involve vision? The brain controls the vision system and without it, seeing is impossible. Even though the eyes is the only tool the body has for seeing the world, vision is not always accurate. Accuracy has nothing to do with the eye itself but how the brain interoperates perception. Examining inside the tiny window of a living eye help us to fully understand the many parts of an eye, and how it functions. Museum of Vision describes how light enters the eye when it bounces off an object creates an image. Only a small amount of image can be seen because the eye has only a tiny window opening. But with the ability to move the eyes, it gives the mind a broader picture. The eyes picks up on the highlighted edges of an object. The light continues to pass through the pupil, making it dilate and the image more focused. Moving towards the back of the eye, a layer that contains cells sensitive to light is called the retina. Cones and rods are cells that sit on the retinas outer layer and absorb distinct bundles of energy. Cones help one perceive color and detail, while rods show black, lights, and whites. Colors make the distinguishing differences in objects when lighting is not enough for the brain. The use of shadows gives one the ability to see 3D.The retina takes that image and makes it appear upside-down and backwards. These lighted cells flip, process the image, and send the information throughShow MoreRelatedPhysics Assignment : Medical Imaging1672 Words   |  7 PagesKathleen Anne Maguire 1/12/2016 Physics Assignment Medical Imaging MDPMS 1. Sound is travelling from material 1 to material 2. The density of material 1 id 25 kg ms-3 and the density of material 2 is 18 kg m-3. The speed of sound in material 1 is 1900 ms-1 and in material 2 is 18 kg m-3. The speed of sound in material 1 is 1900 ms-1 and in material 2 it is 700 ms-1. The acoustic impedance of each material Z= pV Acoustic impedance (Z) Density is (p) Acoustic Velocity (V) ForRead MoreTaking a Look at Mantis Shrimp950 Words   |  4 Pagesapplications of mantis shrimp vision; we must first understand how the eyes of the mantis shrimp work. The compound eye of the mantis shrimp is made up of many ommatidia; â€Å"an ommatidium is like a simple but complete photoreceptor organ consisting of optical components and receptor cells† Most research suggests that the vision experienced by the mantis shrimp is due to three distinct regions in its eye; there is an upper and lower hemisphere separated by the midband; these regions are made of distinctRead MoreScience of Toys669 Words   |  3 Pagesand gyroscopes. A number of optical toys was developed in the early 19th century and it is used as spinning to create moving pictures. One of these is the zoetrope invented in 1834. 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