NCT04926961

Brief Summary

This research study examines the contribution of orbitofrontal cortex (OFC) networks to learning reward identity expectations.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
42

participants targeted

Target at P50-P75 for not_applicable healthy

Timeline
Completed

Started Jun 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 9, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 15, 2021

Completed
1 day until next milestone

Study Start

First participant enrolled

June 16, 2021

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 3, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 3, 2021

Completed
Last Updated

June 17, 2025

Status Verified

June 1, 2025

Enrollment Period

5 months

First QC Date

June 9, 2021

Last Update Submit

June 15, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Percentage of correct outcome predictions

    Percentage of correct outcome predictions in response to predictive cues during the reversal learning task.

    1 hour

  • Blood oxygen level-dependent (BOLD) responses

    Blood oxygen level-dependent (BOLD) responses measured using functional magnetic resonance imaging (fMRI) during the reversal learning task.

    1 hour

Study Arms (2)

Sham stimulation first, then real stimulation

EXPERIMENTAL

Participants will first be delivered sham TMS stimulation. Then on a separate day, participants will be delivered real TMS stimulation.

Device: Sham transcranial magnetic stimulation (TMS)Device: Real transcranial magnetic stimulation (TMS)

Real stimulation first, then sham stimulation

EXPERIMENTAL

Participants will first be delivered real TMS stimulation. Then on a separate day, participants will be delivered sham TMS stimulation.

Device: Sham transcranial magnetic stimulation (TMS)Device: Real transcranial magnetic stimulation (TMS)

Interventions

Sham TMS will be applied using the MagVenture MagPro X100 stimulator with the placebo side of the Cool-B65 A/P coil.

Real stimulation first, then sham stimulationSham stimulation first, then real stimulation

Real TMS will be applied using the MagVenture MagPro X100 stimulator with the active side of the Cool-B65 A/P coil.

Real stimulation first, then sham stimulationSham stimulation first, then real stimulation

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 18 and 50 years old
  • Right-handed
  • Fluent English speakers

You may not qualify if:

  • History of significant neurological conditions (e.g., epilepsy, dementia, multiple sclerosis, brain tumors, etc.)
  • History of major psychiatric conditions (e.g., general anxiety disorder, depression, schizophrenia, obsessive-compulsive disorder, post-traumatic stress disorder, attention deficit hyperactivity disorder, alcoholism, etc.)
  • Significant medical illnesses (e.g., cancer, meningitis, chronic obstructive pulmonary disease, cardiovascular disease, etc.)
  • Significant cerebrovascular risk factors (e.g., hypertension, diabetes, elevated cholesterol, etc.)
  • Current use of psychoactive medications (e.g., barbiturates, benzodiazepines, chloral hydrate, haloperidol, lithium, carbamazepine, phenytoin, citalopram, escitalopram, fluoxetine, diazepam, etc.)
  • Smell or taste dysfunction
  • History of significant allergies requiring hospitalization for treatment
  • History of severe asthma requiring hospitalization for treatment
  • Habitual smoking
  • Magnetic implants (e.g., shunts or stents, aneurysm clips, surgical clips, cochlear implants, metal bone/joint pins, plates and screws, eyelid spring or wires, etc.)
  • Electronic devices (e.g., implanted cardiac defibrillator, cardiac pacemaker, deep brain/spinal cord or nerve stimulator, internal electrodes/wires, medication infusion devices, etc.)
  • History of metal working without proper eye protection, or injury with metal shrapnel or metal slivers
  • Claustrophobia
  • Pregnancy
  • Predisposition to seizures (e.g., personal history of seizures, family history of seizures epilepsy, pregnancy, alcoholism, etc.)
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northwestern University

Chicago, Illinois, 60611, United States

Location

Study Officials

  • Christina Zelano, PhD

    Northwestern University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: Participants receive both sham TMS stimulation and real TMS stimulation in different sessions.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 9, 2021

First Posted

June 15, 2021

Study Start

June 16, 2021

Primary Completion

November 3, 2021

Study Completion

November 3, 2021

Last Updated

June 17, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will share

All data that underlie results in a publication

Time Frame
Upon publication
Access Criteria
Data can be obtained from PI for non-profit purposes upon reasonable request.

Locations