Time Magazine science writer Maia Szalavitz interprets ... [0] "Your Drive to Compete May Come Down to Dopamine" http://healthland.time.com/2012/05/02/your-dri

Time Magazine science writer Maia Szalavitz interprets ... [0] "Your Drive to Compete May Come Down to Dopamine" http://healthland.time.com/2012/05/02/your-drive-to-compete-may-be-down-to-dopamine/ http://healthland.time.com/2012/05/02/your-drive-to-compete-... [1] "Amphetamine Spurs Slackers to Work and Workers to Slack — at Least For Rats" http://healthland.time.com/2012/03/29/amphetamine-spurs-slackers-to-work-and-workers-to-slack-at-least-for-rats/ http://healthland.time.com/2012/03/29/amphetamine-spurs-slac... . ... some research by Michael T. Treadway and nine others. [2] "Dopaminergic Mechanisms of Individual Differences in Human Effort-Based Decision-Making" http://www.jneurosci.org/content/32/18/6170.full http://www.jneurosci.org/content/32/18/6170.full > " ... We found that individual differences in [dopamine] function in the left striatum and ventromedial prefrontal cortex were correlated with a willingness to expend greater effort for larger rewards, particularly when probability of reward receipt was low. ... " You could argue that this mechanism is a neurochemical amplifier of entrepreneurial behavior.