näkövyöhyke

Näkövyöhyke, also known as the visual cortex, is a region of the cerebral cortex primarily responsible for processing visual information. It is located in the occipital lobe, at the back of the brain. This area receives input from the eyes via the optic nerves, which then transmits the information to other parts of the brain for further interpretation.

The visual cortex is organized hierarchically, meaning that information is processed in stages. Initially, simple features like lines and edges are detected. As the information moves through different areas of the visual cortex, more complex features such as shapes, colors, and motion are processed. Specialized areas within the visual cortex are responsible for specific aspects of vision, such as recognizing faces or understanding spatial relationships. Damage to the visual cortex can result in various visual impairments, including blindness, distorted vision, or difficulty recognizing objects. The study of the näkövyöhyke has been crucial in understanding how the brain perceives and interprets the visual world.