Get Help


If you need immediate information you can call one of these 24-hour toll-free hotlines.

  • Rape Abuse & Incest National Network
  • 800-656-4673
  • Childhelp USA
  • 800-422-4453
  • National Domestic Violence/Abuse Hotline
  • 800-799-7233

Nationally recognized consultant, trainer and speaker.

My research and work as a consultant have helped therapists, police officers, prosecutors, judges, senior military commanders, higher education administrators and others to better understand and respond to victims of child abuse and sexual assault.

I am most often sought for my expertise on the neurobiology of trauma and sexual assault. I also train and consult on recovered memories of sexual abuse, the sexual abuse of males, how contemplative practices can tranfsorm the brain to bring healing and genuine happiness, and the potential benefits and risks of psychedelic-assisted psychotherapy, especially for people struggling with complex trauma.

In addition to providing training across the United States and internationally, I serve as an expert witness for criminal and civil cases in state, federal, and military courts.

I was a founding board member of 1in6, Inc., a national non-profit devoted to serving men who’ve had unwanted or abusive sexual experiences, and wrote most of the content on 1in6’s comprehensive web site.

From 2018 to 2023, I was a therapist at the Boston site of the FDA-approved and MAPS-sponsored phase 3 trial of MDMA-Assisted Therapy for PTSD. I also provide ketamine-assisted psychotherapy in private practice and co-direct a Harvard Medical School conference on psychedelic-assisted psychotherapy.

I’m committed to educating the public through this extensive website, my YouTube channel, media engagements, and collaborations with filmmakers.

I enjoy conversations with thoughtful journalists and supporting their work. I’ve been quoted in national media, including the Washington Post, Associated Press, Economist, ABC News, USA Today, PBS and The New York Times (most recently a Sunday Magazine cover story), and featured on radio and television including CNN and NPR Morning Edition.

Finally, I am a Teaching Associate in Psychology in the Department of Psychiatry of Harvard Medical School, and a consultant to the Outpatient Addictions Service of the Cambridge Health Alliance.