Brain lesions are areas of injury or disease in the brain. Lesions may be due to infection, tumors, exposure to certain chemicals, problems with the immune system, and demyelinating diseases such as Multiple Sclerosis. Sometimes the cause is not known.
What is Multimedia? Multimedia can have a many definitions these include: Multimedia means that computer information can be represented through audio, video, and animation in addition to traditional media (i.e., text, graphics drawings, images). A good general definition is:
chat, messaging. Any system that allows any number of logged-in users to have a typed, real-time, on-line conversation via a network. The medium of chat is descended from talk, but the terms (and the media) have been distinct since at least the early 1990s. talk is prototypically for a small number of people, generally with no provision for channels.