Someone found their way here to this site yesterday by searching for an answer to this question.
Can a concussion make you not think?
Why yes, yes it can.
With a concussion, your brain has got its wires crossed, and that can be distracting. Already complex tasks become even more complicated, because in some ways your brain needs to figure out exactly what it needs to do, all over again.
Also, concussion can really do a job on your impulse control, causing you to say and do things that you used to stop and think before doing. Weird things can come out of your mouth, that’s for sure. And even you may be surprised at “who” is talking.
The other part of concussion, is that it can make you more distractable, so you may not pick up every clue and cue that is being sent your way. So, you might get distracted for a moment and not notice a signal that used to stop you from doing something — like a tone of voice or an actual traffic signal.
Your brain is working really hard, trying to sort things out… but it keeps missing things that it should get.
It’s thinking … about the wrong details, or it’s not realizing it needs to think about more information that what’s getting through.
But to everyone else (and maybe you, as well), it seems like you’re just not thinking.