Investigating the Effects of Cannabidiol on Social Anxiety Disorder

Inclusion Criteria:

* Ability and willingness to provide written informed consent.
* Sufficiently fluent in English to participate in the trial.
* Between 18-55 years of age (inclusive).
* Right-hand dominant.
* Current medications are stable for past 30 days (no changes to dose or frequency).
* Negative result on pregnancy test (if female).
* Negative result on urine drug screening.
* Liebowitz Social Anxiety Scale (LSAS ≥ 60).

Exclusion Criteria:

* History of bipolar disorder, schizophrenia, psychosis, delusional disorders.
* History of eating disorder within past 6 months.
* History of any traumatic brain injury.
* Currently diagnosed with diabetes mellitus.
* Presence of severe medical illness that would prevent completion of study procedures.
* Presence of significant neurological illness or cognitive dysfunction (e.g.; seizures, dementia).
* History of substance use disorder within past 6 months (other than nicotine and caffeine).
* Use of any cannabis-containing products in past 30 days (CBD or THC).
* Use of benzodiazepines in past 2 weeks.
* Use of alpha- or beta-blockers in past week.
* History of claustrophobia.
* Contraindications for MRI (e.g.; shrapnel).
* Presence of any other medical condition that, in the investigator's opinion, may interfere with the study procedures.
* Use of concomitant medication that has a strong interaction with CBD.
* History of liver disease.
* History of hypersensitivity to cannabinoids.
* History of hypersensitivity to sesame seed oil.
* Currently breastfeeding (if female).