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When a performer shows variability in their movement solution it is good when it keeps the performance outcome stable and successful and bad when it does not. This also leads to a key prediction: becoming skillful should involve a relative increase in good variability and a decrease in bad variability with practice.
How We Learn to Move a Revolution in the Way We Coach Practice Sports Skills
Rob Gray
The researchers then counted how often four major themes appeared in people’s stories:
• Agency—Did the subjects feel able to influence and respond to events in life, or did they feel battered around by the whims of external forces?
• Communion—Are the people connected to others or disconnected?
• Redemption—Did the subjects take a negative experience and find some positive outcome?
• Contamination—Did they tell narratives of good things turning bad?
The researchers found that when people displayed higher levels of agency, communion and redemption and lower levels of contamination, their mental health improved. They consider good mental health to be low levels of depression and high levels of life satisfaction and psychological and social well-being.
It’s Healthy to Put a Good Spin on Your Life
wsj.com
Combat isn’t simply a matter of risk, though; it’s also a matter of mastery. The basic neurological mechanism that induces mammals to do things is called the dopamine reward system. Dopamine is a neurotransmitter that mimics the effect of cocaine in the brain, and it gets released when a person wins a game or solves a problem or succeeds at a difficult task. The dopamine reward system exists in both sexes but is stronger in men, and as a result, men are more likely to become obsessively involved in such things as hunting, gambling, computer games, and war. When the men of Second Platoon were moping around the outpost hoping for a firefight it was because, among other things, they weren’t getting their accustomed dose of endorphins and dopamine. They played video games instead.
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