Decision Neuroscience of Craving
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 160
- 试验地点
- 2
- 主要终点
- fMRI-BOLD activity measured during willingness-to-pay decisions
研究概览
简要总结
Craving is the strong desire for something, such as for substances in drug addiction and food or other activities in everyday life. Recent work suggests craving can influence how people make decisions and assign value to choice options available to them, yet the neural mechanisms underlying these interactions between craving and valuation remain unknown. To address this, this study uses cognitive decision-making tasks that measure how much individuals will pay (from a study endowment) to have everyday consumer items or snack foods when they crave something specific (opioids or a specific snack, respectively). First, the study will identify the neural mechanisms for how drug craving (craving for opioids) interacts with valuation for consumer items that have associations with drug use or not in people receiving treatment for opioid use disorder (OUD). This will be evaluated in the activity patterns and interactions among brain regions involved in craving and value assignment during decision-making. Then, the study will examine for parallel mechanisms for how food craving (craving for a specific snack) interacts with valuation for snack food items that have similar features to the craved snack or not in people receiving treatment for OUD and non-psychiatric community control participants.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •At least 18 years of age
- •Willingness to follow study requirements, as evidenced by an ability to provide written informed consent and read, understand, and complete the study procedures
- •Minimum of 6th grade reading level
- •Additional inclusion criteria for participants with OUD:
- •Primary diagnosis of OUD encompassing heroin and/or painkiller use
- •Receiving medications for OUD treatment on an outpatient basis
- •At least 12-month history of opioid use
排除标准
- •Unable to speak or read English
- •Active psychosis or mania
- •Current or past schizophrenia diagnosis
- •History of intellectual disability or developmental or neurological disorder, seizures or epilepsy, or loss consciousness lasting more than 30 minutes
- •Severe medical conditions requiring hospitalization or that, in the opinion of the study staff could compromise study participation
- •MRI contraindications (claustrophobia, nonremovable piercings, certain metal in the body etc.) or pregnancy
- •Additional exclusion criteria for community control participants:
- •Positive urine drug screen
- •Current or past problematic substance use other than nicotine, and alcohol abuse confined to college or military service
- •Current or past bipolar disorder diagnosis
- •Use of central nervous system medications within the past 6 weeks (e.g., antidepressants, Ritalin)
研究组 & 干预措施
Consumer Items Willingness-to-Pay Task
Men and women with OUD receiving medications for OUD treatment will complete a decision-making task during functional magnetic resonance imaging (fMRI) in which they indicate their willingness-to-pay for everyday consumer items that have associations with drug use or not. Interleaved with blocks of the task, participants will briefly observe stimuli that can produce a change in their psychological state and drug craving, via two psychological/behavioral interventions: Audio-visual stimuli (Neutral-Relaxing) and Audio-visual stimuli (Drug).
干预措施: Audio-visual stimuli (Neutral-Relaxing) (Behavioral)
Consumer Items Willingness-to-Pay Task
Men and women with OUD receiving medications for OUD treatment will complete a decision-making task during functional magnetic resonance imaging (fMRI) in which they indicate their willingness-to-pay for everyday consumer items that have associations with drug use or not. Interleaved with blocks of the task, participants will briefly observe stimuli that can produce a change in their psychological state and drug craving, via two psychological/behavioral interventions: Audio-visual stimuli (Neutral-Relaxing) and Audio-visual stimuli (Drug).
干预措施: Audio-visual stimuli (Drug) (Behavioral)
Snack Foods Willingness-to-Pay Task
Men and women with OUD receiving medications for OUD treatment and control participants from the community will complete a decision-making task during functional magnetic resonance imaging (fMRI) in which they indicate their willingness-to-pay for snack food items that vary in their features (savory, sweet, etc.). Interleaved with blocks of the task, participants will briefly observe stimuli that can produce a change in their psychological state and food craving, via two psychological/behavioral interventions: Audio-visual stimuli (Non-Food) and Audio-visual stimuli (Food).
干预措施: Audio-visual stimuli (Non-Food) (Behavioral)
Snack Foods Willingness-to-Pay Task
Men and women with OUD receiving medications for OUD treatment and control participants from the community will complete a decision-making task during functional magnetic resonance imaging (fMRI) in which they indicate their willingness-to-pay for snack food items that vary in their features (savory, sweet, etc.). Interleaved with blocks of the task, participants will briefly observe stimuli that can produce a change in their psychological state and food craving, via two psychological/behavioral interventions: Audio-visual stimuli (Non-Food) and Audio-visual stimuli (Food).
干预措施: Audio-visual stimuli (Food) (Behavioral)
结局指标
主要结局
fMRI-BOLD activity measured during willingness-to-pay decisions
时间窗: during the task
Functional MRI data will be analyzed to measure changes in blood-oxygen-level-dependent (BOLD) signal in specific regions of interest based on prior research (ventral striatum, ventromedial prefrontal cortex, amygdala, and insula) as participants make willingness-to-pay decisions during each task.
Willingness-to-pay
时间窗: during the task
The amount that a participant would be willing to pay for different available choice options. This is measured during the decision-making tasks in which participants are shown images of consumer items or snack foods and report how much they would be willing to pay to have the different items in that moment.
次要结局
未报告次要终点
研究者
Anna B. Konova, PhD
Assistant Professor
Rutgers, The State University of New Jersey