Is there any evidence against the existence of a spirit or soul? Atheist Michael Shermer offers one piece of evidence. When someone has a stroke, they can lose their ability to speak. Therefore, when the physical brain is damaged, so too is any related functionality.
This is certainly true with a TV. When one physical element goes bad, so too the picture! However, does this mean that watching is TV show is just about what is contained within the TV? Of course not! The TV is merely a receiver of programming originating from the outside.
Could the brain also be a receiver for something non-material?