What is it that makes the Internet so compelling to so many? Aside from the obvious fun and entertainment, educational and business opportunities, and show-offism; I think it boils down to a slogan taken from the eighties. No fear! The playing field is level. Size doesn't matter, really. Inhibitions and reservations are out the window.
Internet life is people with diseases and addictions, exposing souls and sharing their recoveries. It's about overviews of history warning future generations not to repeat the mistakes of their predecessors. Sure there are a few kooks to throw us off guard, but mostly the Net is just us being ourselves without fear of reprisal. How refreshing.
The Internet is people talking and sharing ideas. Our best and brightest, wallflowers and flower children, the girl next door and the Doc who delivered your kids. It's about you and me. We are all using our own cognizant voices, and we're listening too. We're challenging the status quo, and we're offering alternatives. Collaboration on a global scale all tied together by that simplest of cyber friendships, the hyperlink. Communication has never seen anything like it.
I first considered all this ten years ago when that sociology study came out. Another ten years later, my life is even more enriched by the Internet.
So to answer your question, I don't think it's the Internet that has whacked your brain, I think you might want to be looking elsewhere. If anything, the Internet is keeping you stimulated.