Aristotle, in his Nicomachean Ethics called it akrasia – a weakness of will, acting in a way contrary to our consciously held moral values. It’s the quality that most distinguishes criminals from the rest of us; and the quality that most distinguishes less successful people from those who are more successful.
The ability to resist our short-term impulses and desires, and to focus instead on our long-term values and goals is the most important capacity for living well.
In the late 1960’s, Walter Mischel, a professor at Stanford University, conducted one of the most important experiments in psychology. It’s now called The Marshmallow Test, but marshmallows were only one of a variety of treats used to tempt young limbic systems to indulge in their immediate desires.
Children from age three on up were left alone in a room with treats – luscious marshmallows, yummy cookies… the children got to decide which treats they’d be tantalized by. They were given two options: ring a bell to call the experimenter back in the room, at which point they could eat one of the indulgences; or wait until the experimenter came back some twenty minutes later, and get to eat two of the treats.
This was a test of the ability to delay gratification. Following up in the decades since, Mischel and his colleagues have found that those children who were able to wait longer also were more successful in many crucial ways as time went on.
As teenagers, they scored an average of 210 points higher on their SAT scores. As adults, they were better able to pursue and reach long term goals, including reaching higher educational levels; they were less likely to use drugs, had a significantly lower body mass index, were better able to deal well with challenges in work and maintain close relationships.
Later, when brain imagery technology was used to study these now grown children, those who had maintained a high level of self-control over the course of their lives showed more activity in their prefrontal cortex – the area that integrates the higher functions of motivation and control.
Those who were less able to delay showed more activity in the more primitive ventral striatum – which involves desire, pleasure, and addiction.
The children who were able to resist the siren song of immediate treats went on to lead more disciplined and successful lives than those who were not. This could lead us to think there’s something inborn, a fixed trait of self-control present from early childhood, that would allow some people to flourish and succeed, while others were doomed to a life of self-indulgence and failure.
That’s the message a lot of people have taken from a superficial look at these experiments, but they’ve missed the point entirely…
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