Cannabidiol Effects on Learning and Anxiety

Study Overview
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Brief Summary
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To examine the extent to which Cannabidiol (CBD) enhances fear conditioning extinction in college undergraduates who show elevated social anxiety. Undergraduates who display elevated social anxiety on standard assessments will be recruited at the University of Connecticut. All participants will be put in a standard fear conditioning paradigm where they are conditioned to fear a face that occasionally is followed by a shock to their wrist. The other face never is paired with a shock. After everybody learns this, half of the participants will receive 600 mg CBD Isolate Gel Capsules one time, and the other half will receive a placebo dose. Participants will then be presented with the faces with no shocks, and the rate and duration of extinction as measured by electrodermal response as well as subjective fear ratings via a visual analogue scale will be examined. It is hypothesized that participants that receive CBD will display enhanced extinction compared to the placebo group, as evidenced by reduced electrodermal response and reduced visual analogue fear ratings.

Official Title
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Cannabidiol Effects on Learning and Anxiety

Conditions
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Anxiety and Fear

Intervention / Treatment
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* Drug: Cannabidiol Oral Product
* Other: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 18-50 years of age Exclusion Criteria: Difficulties seeing a computer screen Anyone currently taking CBD within the last 24 hours. Anyone using any cannabis product within the last 24 hours. Heart problems or heart disease A neurological disorder such as epilepsy, stroke, multiple sclerosis, tumor, vascular malformations, aneurysm Are currently pregnant or breast-feeding

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Factorial Assignment
Interventional Model Description: Drug group vs. Placebo group
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cannabidiol<br>600 mg Cannabidiol Isolate Gel Capsules / participant. One-time dose. | Drug: Cannabidiol Oral Product<br>* Participants will receive a one-time dose of 600 mg Cannabidiol Isolate Gel Capsules in the form of six 100mg capsules.<br>|
| Placebo Comparator: Placebo<br>Same number of placebo capsules / participant. One-time dose. | Other: Placebo<br>* Participants will receive a one-time dose of placebo capsules in the form of six capsules.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Electrodermal activity | Electrodermal response as measured by galvanic skin response electrodes that are attached to two of the fingers via sticker electrodes. These passively measure the conductance of the sweat glands on the fingers. | 20 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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social anxiety, fear conditioning, cannabidiol, electrodermal response