REWARD SYSTEM RESPONSES TO FOOD AROMAS

Adiposity Clinical Trial

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT02041039
• Other study ID #: R01DK089070
• Status: Recruiting
• Start date: October 2010
• Est. completion date: October 2024

Study information

• Verified date: April 2023
• Source: Indiana University
• Contact: Robert V Considine, Ph.D.
• Phone: 317-278-0373
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Food aromas are a part of foods' flavor, and can promote overeating. Alcohol consumption also stimulates appetite, and contributes to overeating while under alcohol's acute effects. Knowing the brain regions that respond to food aromas and alcohol, and how they are modified by the amount of body fat and alcohol exposure, will provide critical information about the neural systems that underlie loss of control of eating. Therefore, the main hypotheses of this study are that: A) Lean and obese subjects have different brain responses to food aromas that enhance desire to eat, and B) Acute alcohol intoxication i) enhances the brain's response to food odors, and ii) affects brain systems that inhibit or terminate eating. To test these hypotheses, we have modified functional magnetic resonance imaging (fMRI) paradigms successfully used to study alcoholic drink aromas in subjects at risk for alcoholism.

Description:

Food aromas are powerful appetitive cues that are intrinsic to foods' flavor and hedonic qualities, and such cues can facilitate overeating. Alcohol consumption similarly "primes" appetite, and contributes to overeating while under alcohol's acute effects. Knowing the brain loci that respond to such naturalistic appetitive stimuli, and how they are modified by body fat and alcohol exposure, will provide critical insights about the neural systems that underlie loss of control of eating. Therefore, the main hypotheses of this study are that: A) Lean and obese subjects have different limbic responses to the olfactory cues that enhance motivation to eat, and B) Acute alcohol intoxication i) potentiates the brain's reward system response to food odors, and ii) affects brain systems involved in behavioral inhibition and eating restraint. To test these hypotheses, we have modified functional magnetic resonance imaging (fMRI) paradigms successfully used to study alcoholic drink aromas in subjects at risk for alcoholism.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 200
• Est. completion date: October 2024
• Est. primary completion date: October 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 18 Years to 40 Years

Eligibility

Inclusion Criteria:

• non smoking, right handed women 18-40 years

• good health without self reported neurological or psychiatric disorder

• no indication of eating disorders

• normal sense of smell

Exclusion Criteria:

• pregnant,/breast feeding women

• history of drug abuse/dependence, positive drug screen for amphetamines/methamphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine, opiates or PCP

• DSM-IV axis I psychiatric disorders or head injury with loss of consciousness

• contraindications to MRI (ferrous material, claustrophobia)

Related Conditions & MeSH terms

• Adiposity
• Obesity

Locations

Country	Name	City	State
United States	Indiana University School of Medicine	Indianapolis	Indiana

Sponsors (2)

Lead Sponsor	Collaborator
Robert Considine	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	neural response to food odor		1 month