The Influence of Obesity and Insulin Sensitivity on Reward Processing and Decision Making (No acronym)
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- 18 to 45 years of age
- Self-reported weight stable (within 5 lbs) for previous 3 months
- Not pregnant or planning to become pregnant during study participation
- Weigh more than 110 lbs (due to blood draws used in study)
- Residing in Roanoke, VA, area and/or willing to attend sessions at the Fralin Biomedical Research Institute
Exclusion criteria:
- BMI < 18.5 or > 40 kg/m2
- Hemoglobin A1c > 6.4%
- Fasting blood glucose > 126 mg/dL
- 2-hour blood glucose > 200 mg/dL
- Self-reported current diagnosis of diabetes or other endocrine/metabolic disorder
- Self-reported current inhaled nicotine use
- Self-reported history of alcohol dependence
- Self-reported use of medications known to influence study measures (including antiglycemic agents, thyroid medications, etc.)
- Self-reported neurological or psychological disorder
- Self-reported claustrophobia or discomfort with mock fMRI training
- Self-reported history of head injury resulting in loss of consciousness for more than 10 minutes
- Contraindications to MRI, including pacemaker, aneurysm clip, neurostimulator, cochlear implant, metal in eyes, steel worker, other implants
- Self-reported previous metabolic/weight loss surgery
- Self-reported adherence to special or restrictive diet within the past 3 months (e.g., low-carb, ketogenic, exclusion of food groups/specific macronutrients, etc.)
- Self-reported allergy to ingredient used in the study drinks
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Zufällig
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Single
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Experimental: Conditioned Stimulus- First, Then Conditioned Stimulus +
Participants will consume the Conditioned Stimulus (CS) - experimental drink 6 times during flavor-nutrient conditioning sessions.
Then, they will consumes the CS+ experimental drink 6 times during flavor-nutrient conditioning sessions.
|
Participants will consume flavored beverage solutions sweetened with sucralose during 6 conditioning sessions.
Participants will consume flavored beverage solutions sweetened with sucralose and containing 110 calories of maltodextrin during 6 conditioning sessions.
|
|
Experimental: Conditioned Stimulus + First, Then Conditioned Stimulus -
Participants will consume the Conditioned Stimulus (CS) + experimental drink 6 times during flavor-nutrient conditioning sessions.
Then, they will consumes the CS- experimental drink 6 times during flavor-nutrient conditioning sessions.
|
Participants will consume flavored beverage solutions sweetened with sucralose during 6 conditioning sessions.
Participants will consume flavored beverage solutions sweetened with sucralose and containing 110 calories of maltodextrin during 6 conditioning sessions.
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Rated Liking
Zeitfenster: On the first day of enrollment to the post-test session approximately 1-2 weeks later
|
Participants will rate liking of flavors that will be paired with conditioned stimulus (CS) + and CS- drinks on a labeled hedonic scale during an enrollment session.
In a post-test session, after all conditioning sessions have occurred, participants will rate liking of flavors that were previously paired with CS+ and CS- drinks.
|
On the first day of enrollment to the post-test session approximately 1-2 weeks later
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Rated Wanting
Zeitfenster: On the first day of enrollment to the post-test session approximately 1-2 weeks later
|
Participants will rate wanting of flavors that will be paired with conditioned stimulus (CS) + and CS- drinks on a visual analog scale during an enrollment session.
In a post-test session, after all conditioning sessions have occurred, participants will rate wanting of flavors that were previously paired with CS+ and CS- drinks.
|
On the first day of enrollment to the post-test session approximately 1-2 weeks later
|
|
Proportion Correct on a Probabilistic Learning Task
Zeitfenster: Approximately 30-45 minutes during the enrollment/screening session at the start of the study
|
Participants will complete a probabilistic learning task in which they choose between abstract stimuli and observe probabilistic outcomes with the goal of maximizing accuracy.
The proportion of trials in which the objectively optimal choice has been selected will be computed as the proportion correct.
|
Approximately 30-45 minutes during the enrollment/screening session at the start of the study
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 26-058
- K01DK142002 (US NIH Stipendium/Vertrag)
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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