Results over the 16-year study period show a troubling decline in treatment for cannabis use disorder, dropping from 19% in 2003 to 13% in 2019, despite consistently high need. At all three time points—2003, 2011, and 2019—the majority of individuals with the disorder did not receive any form of treatment. When asked why, participants cited various barriers, including not knowing where to find help, feeling unready to stop using cannabis, treatment costs, stigma, and concerns about potential negative effects on their job or career.

Researchers at the University of Pittsburgh discovered that specific brain white matter features in 3-month-old infants can predict how their emotional responses and regulation abilities will develop by 9 months. Higher neurite dispersion in brain connections was linked to increased negative emotionality, while greater connectivity within executive control regions predicted better positive emotions and self-soothing abilities.

A comprehensive review in Brain Medicine examines how ECT session numbers impact treatment outcomes in depression. Researchers found early rapid improvement followed by diminishing returns, proposing a response-guided sequential strategy that could revolutionize treatment approaches by balancing efficacy with cognitive preservation.