University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27514, United States
Location status: Recruiting
NCT Number: NCT06880640
The purpose of this research study is to investigate how personality traits and neuroendocrine systems relate to decision-making patterns in individuals 18-45 years old. The main question it aims to answer is how neuroendocrine activity impacts decision-making.
Participants will complete online behavioral tasks, a stress induction procedure, self-report surveys, and a cognitive assessment. During the session, psychophysiological measures will be collected, including electrocardiogram (ECG) and cardiac impedance (ICG) to monitor heart rate and blood flow, as well as electrodermal activity (EDA), blood drop samples, and saliva collection to assess nervous system activity.
Interested in participating?
Request Info18 year–45 year
All sexes
Interventional
Not applicable
Chapel Hill, North Carolina, 27514, United States
Location status: Recruiting
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Borderline Personality Disorder (BPD) group:
DEPENd lab studies that maintain large samples of BPD participants. To ensure maximal similarity between BPD participants recruited from other DEPENd lab studies and BPD participants recruited through other recruitment sources, the investigators will use the same criteria for the BPD group in the current study as the criteria used in the other DEPENd lab studies. BPD participants in the two DEPENd lab studies from which the investigators will be recruiting must meet the following criteria:
Health Control (HC) Group:
Combined Inclusion Criteria:
Exclusion criteria
Participants will complete the Trier Social Stress Test to induce stress, which includes a public speaking simulation and mental arithmetic.
Other names: Trier Social Stress Test (TSST)
Time frame: Collected for 40 minutes ~2 hours into one-time study visit
Measured by choice behavior in SDTT, which is based on the decision tree framework. After each action, participants receive feedback about the effect of that action and the extent to which it added to or took away from their points. If participants make a given choice, the subsequent actions that they can choose are different than if they were to initially make a different choice.
An action in SDTT is goal-directed if the possible net gain an individual can earn before the end of the current epoch (a "day" in the SDTT) is equal to or higher than the amount they could gain by choosing the alternative action. The investigators will subset trials so that 1 is coded as choosing the immediately valuable action at the expense of the optimal and 0 is coded as choosing the optimal at the expense of the immediately valuable action. This outcome variable is binary.
Time frame: Collected for 40 minutes ~2 hours into one-time study visit
Measured by choice behavior in SDTT, which is based on the decision tree framework. An action in SDTT is defined as social if it is paired with a visual cue with a face on it and non-social if not. This outcome variable is binary.
Time frame: Collected shortly after the participant consents into the study (~20 minutes into the one-time study visit) and 20 minutes after stress induction concludes (~2 hours into one-time study visit)
The investigators will collect a saliva sample to measure baseline salivary cortisol at the beginning of the session. They will collect a second saliva sample 10 minutes after the stress induction concludes. They will measure cortisol levels in both samples through an assay. The investigators will calculate the change in salivary cortisol by subtracting the measured cortisol in the first saliva sample (collected at baseline) from the measured cortisol in the second saliva sample (collected 10 minutes after the stress induction). Salivary cortisol is measured as nmol/L. Salivary cortisol expected to generally be below 200 nmol/L.
Contact information is provided by the study sponsor or research team.
University of North Carolina, Chapel Hill
Other
Affect-based Impulsivity in Borderline Personality Disorder: Developing a Neurocomputational Phenotype
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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