From the Editor

It’s legal. It’s readily available. What are the implications for road safety?

Cannabis is the focus of more and more research. Little, though, has been studied for its effects on driving. In the first selection, Thomas D. Marcotte (of the University of California San Diego) and his co-authors consider cannabis and driving performance. In a new paper for JAMA Psychiatry, they report on an RCT: “In a placebo-controlled parallel study of regular cannabis users smoking cannabis with different THC content ad libitum, there was statistically significant worsening on driving simulator performance in the THC group compared with the placebo group.” We consider the paper and its clinical implications.

Next month, the American Psychiatric Association releases DSM-5-TR, the first major update to the DSM series in nine years. Though the diagnostic criteria of several disorders have been revised, there is only one new disorder: prolonged grief disorder. In the second selection, Holly G. Prigerson (of Cornell University) and her co-authors write about it for JAMA Psychiatry. “PGD is a serious mental disorder that puts the patient at risk for intense distress, poor physical health, shortened life expectancy, and suicide.”

Finally, in the third selection, we consider the life and legacy of Dr. Alan A. Stone, a psychiatrist who passed at the age of 92. In his obituary for The New York Times, reporter Clay Risen describes his incredible career – as a psychoanalyst, a Harvard professor (in both the faculties of law and medicine), and a former president of the American Psychiatric Association who championed dropping homosexuality as a psychiatric disorder.

DG

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