Vision is of primary importance for s couple of reasons.
Second, as neuroscience researchers or students, we have a very good understanding of the visual system as compared to other modalities. However, many principles that we introduce tonight for the visual system are actually valid for other sensory systems as well. In general, sensory information is transduced before it is operated on by the brain. This process occurs in the retina, in the back of each of our eyes. It's 100,000,000 photoreceptors are responsible for building up the incredibly rich visual model or representation of the world that we describe as visual perception.