Model Of Reflective Essay

Why do so many people consider vision one of the most important senses? Without it, we would not be able to perceive the world around us or interact with it, but how is visual information turned into both perceptions of the world and physical actions? Scientist discovered that there are two visual pathways in the primate visual cortex, the dorsal stream and the ventral stream. Drs. Leslie Underleider and Mortimer Miskin proposed that these two pathways process two different kinds of visual information. They called the ventral stream the “what” stream because they believed it processed visual information about an objects structure in order to recognize and perceive an object. They referred to the dorsal stream as the “where” stream, because they believed it processed information about an objects location in space.
One study that supported Ungerleider and Mishkin’s what vs. where model was a lesion study by Pohl. In this study, a food reward was hidden in a hole and the monkey had to figure out where the object was and where the food would be. It was discovered that damage to the parietal lobe (dorsal stream) made it difficult for the monkey to accomplish this task indicating damage to the “where” pathway. Similarly, Pohl performed a task where food was hidden in the hole closest to the new object, so the monkey had to discriminate between the two objects to get the