Answer:
The new research mentioned in the article measures and compares the extent of risk-taking behavior between teenagers and adults.
Step-by-step explanation
The initial premise of the article is based on earlier research that posited that teenagers seem to make reckless decisions or engage in delinquent behavior because the part of the teenage brain that responds to rewards is still very sensitive whilst the self-control systems of the teenage brain are yet to be fully formed.
The new research in the question is mentioned in paragraphs 7, 8, and 9 and takes a different position.
The research was designed to compare the extent of risk-taking behavior between adults and teenagers using a game. To do this, they looked out for activities in the brain of both parties to see how they were responding during the game which involved varying levels of stakes.
The conclusion or result of the research showed that teenagers rather than make reckless decisions when the stakes were higher, took more time to ensure that they weren't making mistakes.
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