The Influence of Obesity and Insulin Sensitivity on Reward Processing and Decision Making (No acronym)
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Tipo de estudio
Tipo de estudio
Inscripción (Estimado)
Inscripción
Fase
Fase
- No aplica
Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Descripción
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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Ciencia básica
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación cruzada
- Enmascaramiento: Único
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
|
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.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Rated Liking
Periodo de tiempo: 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
|
Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Rated Wanting
Periodo de tiempo: 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
Periodo de tiempo: 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
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Colaboradores
Colaboradores
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Inicio del estudio
Finalización primaria (Estimado)
Finalización primaria
Finalización del estudio (Estimado)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- 26-058
- K01DK142002 (Subvención/contrato del NIH de EE. UU.)
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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