Hi Zaria, welcome to PC.

First, don't feel stupid. I think most kids play the "ignore" game. Like my 7 year old tends to do this a lot, (especially if he's on the computer or watching t.v.) I think that's a normal kid thing. He never hears "time to pick up toys," yet somehow he never misses if I happen to bring home candy.

So, I have two questions.

1) Has he had his hearing checked? I mean, maybe he really can't hear you.

2) If his hearing is fine, then I'm goin to say it could be slow processing. Executive cognitive function is not IQ. It is things like organization (like being able to prioritize tasks or keep a room clean,) memory, focus, and processing. It's just like a computer. You know when you watch a YouTube video and it says "buffering?" Well, the brain is kind of the same way with information. Processing decline is one of my cognitive skills that's declined very noticablely.

The only thing I know to help cognitive skills is to play games that enforce them. Like match games, or games where you have to quickly click or tap targets. But, it might be worth a visit to the doctor to figure out if there's a reason this is happening to him.