Gauging Of Light Dependent Experiences Through Neuroimaging (GOLDEN)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

22 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-01-31

Study Completion Date

2014-06-30

Brief Summary

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In the proposed study, the investigators will assess the brain's dopamine response to UVR light in individuals who use tanning beds both frequently and infrequently.

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Detailed Description

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UV radiation has recently been classified as a known human carcinogen by the US Department of Health and Human Services. Nevertheless, the voluntary exposure to sunlight continues unabated despite progressively increasing rates of ultraviolet radiation (UVR)-induced illness and death, particularly skin cancer. An increasingly common form of UVR administration is through the use of indoor tanning salons. Almost 30 million Americans, including 20% of 18-39 year olds, visit indoor tanning salons each year. Frequent and excessive tanning, despite a growing understanding by those who tan of the morbidity and mortality associated with tanning, suggests that UVR may impart rewarding effects beyond the assumed cosmetic benefits. Recent studies, in fact, have shown that up to 40% of both frequent beach and salon tanners exhibit signs and symptoms consistent with an addictive disorder, including an inability to decrease their tanning frequencies, compulsive tanning, and/or continued tanning despite adverse consequences. As the mesostriatal dopaminergic pathway plays a key role in reward and addiction, the investigators propose to extend this novel finding by directly assessing the mesostriatal dopaminergic reward pathway in compulsive and infrequent tanners. This pathway plays a key role in the experience and integration of reward and alterations in this system have been observed in addicted populations. Specifically, 1) striatal dopamine is released in response to rewarding substances and experiences, 2) striatal dopamine2/3 receptor densities are lower in cocaine, alcohol, opioid, and nicotine dependent, as well as obese, subjects, and 3) reward-induced striatal dopamine efflux has been shown to be decreased in addicted, relative to non-addicted, subjects.

Conditions

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Compulsive and Infrequent Tanners

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Infrequent tanners

Individuals who tan less than twice a week and do not meet modified DSM-IV criteria for tanning addiction.

Tanning

Intervention Type DEVICE

Participants will be placed under a tanning canopy for 4-10 minutes.

Compulsive Tanners

Individuals who tan more than 3 times per week in a tanning bed. Tanning must cause disruption in daily functioning. Must meet modified DSM-IV criteria for tanning addiction

Tanning

Intervention Type DEVICE

Participants will be placed under a tanning canopy for 4-10 minutes.

Interventions

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Tanning

Participants will be placed under a tanning canopy for 4-10 minutes.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Between ages 21-40
* Tan at least twice weekly over the last year (Frequent Tanners)
* Tan less than twice a week over the last year (Infrequent Tanners)
* Meet modified DSM-IV criteria for Frequent Tanners

Exclusion Criteria

* Medications that effect brain functioning
* Other medical or psychiatric disorders that may affect neural functioning.
* Drug and Alcohol abuse or dependence
* Pregnancy

Minimum Eligible Age

21 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes