Tunnel Vision

According to the book, mechanics of the mind, the authors say(I think, been a while since I read it.) that this 'tunnel vision' happens when the brain gets occupied with a single idea or thought, and blocks all other details out.

I guess the best way to deal with it would be to have a structured dicison making process that looks at all aspects of the position. And practicing this process over a long period of time in long/correspondence games until it becomes habitual.

Just to show you that I can play a decent game of chess (I hope it was a decent game), here's a game I just finished: