Cannabinoid Control of Fear Extinction Neural Circuits in Post-traumatic Stress Disorder

Dronabinol (7.5mg) is administered only once (approximately 120 min prior to fMRI scanning in Visit 3) by the oral route and is placed in opaque capsules with dextrose filler. Half of the participants in each diagnostic group \[HC = 20; PTSD = 20; TEC = 20\] will receive dronabinol.

Placebo is administered only once (approximately 120 min prior to fMRI scanning in Visit 3) by the oral route and contains only dextrose in opaque capsules. Half of the participants in each diagnostic group \[HC = 20; PTSD = 20; TEC = 20\] will receive placebo.