On the psychology of extremism: How motivational imbalance breeds intemperance
We present a psychological model of extremism based on the concept of motivational imbalance whereby a given need gains dominance and overrides other basic concerns. In contrast, moderation results from a motivational balance wherein individuals' different needs are equitably attended to. Importantly, under moderation the different needs constrain individuals' behaviors in prohibiting actions that serve some needs yet undermine others. Those constraints are relaxed under motivational imbalance where the dominant need crowds out alternative needs.