Brant Hasler PhD

Dr. Hasler’s research focuses on the role of sleep and circadian rhythms in regulating affect and motivation, particularly as they pertain to affective disorders and substance use in adolescents and young adults. He uses a combination of experimental and observational methods—including ecological momentary assessment, behavioral tasks, neuroimaging, and objective sleep and circadian rhythm assessments—to investigate mechanisms both in the laboratory and the real world. Dr. Hasler’s NIH-funded research program includes multiple ongoing and/or recently-concluded studies focused on understanding the links between sleep, circadian rhythms, and risk for psychopathology (mood disturbance, substance use) in adolescents and young adults. Dr. Hasler’s newest R01 examines cannabis effects on sleep, circadian rhythms, and light sensitivity. In addition to his research program, Dr. Hasler is actively engaged in research mentorship and clinical supervision, as well as direct clinical practice, and is the Co-Director of the accredited Behavioral Sleep Medicine training program at the University of Pittsburgh.