Thanks everyone for your thoughtful replies. I understand a cognitive gift is a gift that requires differentiation. But I would love to see research that supports the overexcitability theory. I do have a 99.9 child who is going into what seems to be an amazing program and he is so even keeled that I'm wondering has anybody truly researched the concept of overexcitabilities or is it just a theory that's gone mainstream? All 3 of our children are gifted but it seems the "least" gifted has the most "overexcitabilities" so I've never attributed them to his giftedness - just an amazing kid learning to manage/process his emotions (like half the kids in his classroom).

Anyway if anybody has links to actual research studies (versus anecdotal evidence) I would love to read them. Not trying to make an argument - just want to know if there is validity to the current one.