Control of Vision
Among the senses, the brain of primates devotes
most space to the analysis of vision. In addition to the numerous subcortical
regions, in the cortex more than 30 thirty visual areas have been identified.
The analysis of the visual scene is a complex undertaking; we are only
now starting to learn about how the brain goes about performing this job.
We typically identify several basic aspects of visual analysis that includes
the perception of color,
brightness, motion, depth, texture,
and shape. Whether there are separate brain areas specifically
devoted to the analysis of each of these attributes is still unclear.
It appears now that most visual areas in cortex actually co-processes
several different visual attributes; consequently why we have so many
cortical areas for vision is still a largely unsolved question.
In the Schiller Lab the workings of the visual
system have been studied for many years. Using behavioral and physiological
methods, the research is carried out both in animals and in patients who
have suffered infarcts in various brain structures.