I'm trying to remember the name of a story that I think was a short story in a collection. It had to be from the 1980's or maybe earlier, but computers were definitely involved.
My mental image of the story has one computer user after another sitting down at a computer, seeing or reading something, then going catatonic or maybe even dying.
The thing they saw or read was some kind of joke or story that seemed to be able to short-circuit human brains.