Excerpt: In a study published online last month in The Journal of Psychiatric Research, Janine D. Flory, a psychologist at the Mount Sinai School of Medicine in Manhattan, led a team of investigators who studied 351 healthy adults and 70 others with impulse-related disorders like antisocial and borderline personality disorders. The participants took a battery of tests to measure inhibition, appetite for risk and the inclination to plan. Analyzing the responses to questions intended to gauge thrill seeking like, “”I like to explore a strange city or section of town by myself, even if it means getting lost,”” and, “”I like to try foods I’ve never tried before,”” the researchers…