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Neural Substrates of Approach-Avoidance Conflict

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02119624
Recruitment Status : Completed
First Posted : April 21, 2014
Last Update Posted : January 26, 2021
Sponsor:
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Institute on Alcohol Abuse and Alcoholism (NIAAA) )

Brief Summary:

Background:

- People who are dependent on alcohol drink even when they know something bad might happen. Researchers want to learn more about why they do this.

Objectives:

- To study brain response when a person plays a game in different threat conditions.

Eligibility:

  • Healthy right-handed adult heavy drinkers age 21 60
  • Healthy right-handed adult light drinkers age 21 60

Design:

  • Participants will be screened with medical history, physical exam, and blood and urine tests. They will have an EKG and psychiatric interview.
  • Participants will have one or two clinic visits.
  • Participants will be asked about their alcohol drinking.
  • They will choose a snack and alcoholic beverage that they must drink in 5 minutes. After their breath alcohol content (BrAC) is zero, they will play a game in the MRI scanner.
  • The scanner is a metal cylinder that takes pictures of the brain. Participants lie on a table that slides in and out of the cylinder. They will be in it for about 90 minutes, lying still for up to 20 minutes.
  • During the MRI, participants will play a simple computer game to earn food or drink points under different threats of electric shock. Points can be exchanged for food or alcohol after the game. Sometimes, participants will receive a mild electric shock through a metal disk on the wrist. Electric shocks will only happen if the participant tries to earn a reward point.
  • After the MRI, participants use their points for another drink and snack. They will stay at the clinic until their BrAC is low, usually within 3 hours. Participants cannot drive themselves home.
  • Participants will have a follow-up phone call the next day.

Condition or disease
Alcoholism fMRI Rewarding Mediating System

Detailed Description:

Objective: Continued drug seeking despite knowledge of adverse consequences is a hallmark of addiction. To model this behavior, we will refine the parameters of a modified Monetary Incentive Delay (MID) task that will allow us to investigate neural substrates of approach-avoidance conflict resolution. We will then use this task to investigate functional magnetic resonance imaging (fMRI) brain activation during pursuit of reward in heavy and light drinkers.

Study Population: Healthy non-treatment-seeking heavy drinkers and healthy light drinkers aged 21 to 60.

Design: The study will require 1 to 2 visits. Subjects will play a modified MID task called Reward Incentive Delay with Shock (RIDS) to measure motivation to earn cue reward points in conditions that are signaled to be safe or associated with a threat. After playing the RIDS task subjects will be able to self-administer alcohol and/or food based on the reward points earned during the task.

Outcome measures: The outcome measures are differences in behavioral task performance and in blood oxygenation dependent level (BOLD) signal measured using standard fMRI techniques and analyzed using AFNI software.

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Study Type : Observational
Actual Enrollment : 62 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Neural Substrate of Approach-Avoidance Conflict
Actual Study Start Date : July 23, 2014
Actual Primary Completion Date : September 1, 2020
Actual Study Completion Date : September 1, 2020

Resource links provided by the National Library of Medicine


Group/Cohort
1
Healthy non-treatment-seeking heavy drinkers
2
Healthy light drinkers



Primary Outcome Measures :
  1. fMRI BOLD signal differences between heavy and light drinkers during reward and threat task. [ Time Frame: Mainly the fMRI and behavioral data collected at the time of enrollment ]
    fMRI and behavioral differences between light drinkers and heavy drinkers.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   21 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Healthy non-treatment-seeking heavy drinkers and healthy light drinkers aged 21 to 60.@@@
Criteria
  • Inclusion criteria (Light Drinkers):

    1. In good health as determined by medical history, physical exam, ECG, and lab tests;
    2. Between 21 and 60 years of age;
    3. Currently consuming on average 1-10 drinks per week for females and on average 1-14 drinks per week for males, (averaging over the 90 days recorded in the Alcohol Timeline Followback);
    4. Right handed.

Exclusion criteria (Light Drinkers):

  1. Have liver function tests (AST, ALT, GGT, ALP) 3-times the upper limit of normal (ULN); or have Total Bilirubin above 1.5 ULN and Albumin below 3.5 g/dl;
  2. Have fulfilled DSM-IV-TR or DSM-5 criteria for alcohol dependence or alcohol use disorder (past or current) at any time, or other current substance dependence or substance use disorder (excluding nicotine);
  3. Report having received any medication to treat a psychiatric disorder within the past year, have a past or present diagnosis of a psychotic or bipolar disorder, or have ever had a head injury requiring hospitalization;
  4. Weigh over 330 pounds;
  5. Are pregnant, as determined by a positive pregnancy test, or breast feeding; Report to have a facial, body, and limb flushing response to the consumption of alcohol, as determined by the Alcohol Flushing Questionnaire;
  6. Report to have a "facial flushing" response to the consumption of alcohol
  7. Have ferromagnetic objects in their bodies which might be adversely affected by MRI including implanted pacemakers, medication pumps, aneurysm clips; metallic prostheses (including metal pins and rods, heart valves or cochlear implants, shrapnel fragments, permanent eye liner or small metal fragments in the eye that welders and other metal works may have - any doubt about presence of these objects will result in exclusion from this study), or if candidates are uncomfortable in small closed spaces (have claustrophobia), or cannot lie comfortably on their back for up to one hour;
  8. Medical illnesses (such as diabetes or stage 2 hypertension systolic blood pressure greater than or equal to 160 mm Hg or diastolic blood pressure greater than or equal to 100 mm Hg) or neurological illnesses (carpal tunnel syndrome; migraine headaches; seizure disorders) likely to interfere with the study;
  9. Endorse more than 3 symptoms on the Yale Food Addiction Scale;
  10. Have colorblindness.

Inclusion criteria (Heavy Drinkers):

  1. In good health as determined by medical history, physical exam, ECG, and lab tests;
  2. Between 21 and 60 years of age;
  3. Currently consuming on average 15+ drinks per week for females and on average 20+ drinks per week for males, as determined by the 90-day Alcohol Timeline Followback, or fulfilled DSM-IV-TR criteria for current alcohol dependence or DSM-5 criteria for current alcohol use disorder;
  4. Right-handed;
  5. Clinical Institute Withdrawal Assessment Alcohol Revised (CIWA-AR) score less than 8;
  6. Not seeking treatment for their alcohol consumption.

Exclusion criteria (Heavy Drinkers):

All exclusion criteria for Light Drinkers except for Light Drinker exclusion criterion number two. For Heavy Drinkers this exclusion criterion will read:

Have fulfilled DSM-IV-TR or DSM-5 criteria for any current substance dependence or current substance use disorder (excluding alcohol or nicotine).


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02119624


Locations
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United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Investigators
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Principal Investigator: Reza Momenan, Ph.D. National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Additional Information:
Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: National Institute on Alcohol Abuse and Alcoholism (NIAAA)
ClinicalTrials.gov Identifier: NCT02119624    
Other Study ID Numbers: 140094
14-AA-0094
First Posted: April 21, 2014    Key Record Dates
Last Update Posted: January 26, 2021
Last Verified: January 2021
Keywords provided by National Institutes of Health Clinical Center (CC) ( National Institute on Alcohol Abuse and Alcoholism (NIAAA) ):
Neural Networks
Alcoholism
fMRI
Reward
Addiction
Additional relevant MeSH terms:
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Alcoholism
Alcohol-Related Disorders
Substance-Related Disorders
Chemically-Induced Disorders
Mental Disorders