Petitto agrees that environment modifies predispositions, but not totally. From birth, for example, some babies are labeled “high arousal,” and some “high attentive.” High attentives are kids who can usually stimulate themselves; they tend not to be bored. They are often more confident, because they don’t need a high degree of external validation to tell them that they are competent. High arousal babies, however, are often those who are inconsolable and demand attention. They can become the teenagers who end up in trouble. “As kids, they are the ones who constantly go for danger, who find
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