HealthyNCT00083317
Role of the Brain in Making Economic Decisions
An observational study of Healthy, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.
Trial summary
This study will identify which areas of the brain mediate the interaction between people involved in economic decision-making. Healthy, right-handed native English speakers between 21 and 55 years of age may be eligible for this study. Read more about this study
- Who is it for?
- Ages 21 to 55 years
- Conditions the study is for
- Healthy
- How many people
- 127 participants
- Where
- 1 siteUnited States
- Study dates
- 15 May 2004to 4 Jan 2012
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 to 55 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- In all the studies, subjects will consist of healthy, native English-speaking, right-handed volunteers, as measured by the Edinburgh Handedness Inventory (Oldfield, 1971). Subjects will range in age from 21 to 55 years old and they will be included regardless of race.
Who cannot join
- Non-native English speakers and non-right handers will be excluded as mentioned above, as will non-neurologically normal volunteers. Subjects younger than 21 and older than 55 will be excluded. A urine pregnancy test will be employed with all women of childbearing age. The results must be negative in order to proceed with the MRI.
- Participants with any of the following: aneurysm clip; implanted neural stimulator; implanted cardiac pacemaker or auto-defibrillator; cochlear implant; ocular foreign body, e.g. metal shavings; permanent eyeliner; insulin pump; or irremovable body piercing will be excluded from the study due to the possible dangerous effects of the magnet upon metal objects in the body. Participants taking central nervous system active medications will be excluded.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: The Role of the Prefrontal Cortex in Economic Decision-Making in Reciprocal Trust Games Using Functional Hyperscanning Neuroimaging
This study will identify which areas of the brain mediate the interaction between people involved in economic decision-making.
Healthy, right-handed native English speakers between 21 and 55 years of age may be eligible for this study. Candidates are screened with a telephone interview, a questionnaire to determine handedness, and a neurological examination if one has not been performed within the last year by an NIH physician.
Read more
Participants bargain for money by playing two-person trust games, while undergoing functional magnetic resonance imaging (fMRI). MRI uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The MRI scanner is a metal cylinder surrounded by a strong magnetic field. During the procedure, the subject lies on a stable that can slide in and out of the scanner, wearing earplugs to muffle loud knocking sounds that occur with electrical switching of the magnetic fields. Functional MRI involves taking MRI scans while the subject performs a task-this to learn about how the brain regions are involved in performing the task. For this test, the subject plays or watches two-person games involving trust. The game may be played against a stranger or a friend. The winner receives a cash payoff.
The subject performs one of the following two tasks during MRI scanning:
- Playing the trust games and indicating as quickly as possible by pressing a right or left button whether he or she wants to stop or continue playing, or
- Observing games that others have played and predicting as quickly as possible by pressing a right or left button whether the players wanted to stop or continue the games.
The test takes about 90 minutes. After the scan, participants complete written questionnaires about their experience in the scanner and their views on issues related to participating in competitive games.
...
Read the detailed description
Objective. The purpose of the protocol is to identify the brain regions mediating the social cooperation involved in economic decision-making, including whether negative mood and perceived interpersonal similarity affect behavior or brain regions utilized.
Study Population. Healthy, normal adult volunteers will play and observe two-person reciprocal trust games during functional neuroimaging against either real people or computers masquerading as real people.
Design. A between/within-subject, rapid event-related fMRI design will be employed for two series of experiments. In the first experiment, two persons-each in a separate MRI scanner-will interact with one another playing two-person reciprocal trust games while their brains are simultaneously scanned. In the second experiment, a third person will later observe the played games while in a scanner, trying to predict the decisions of the two other players in the first experiment. In the third experiment, a sad mood will be induced in half of the participants to examine if it affects levels of cooperative behavior and patterns of brain activation in the two types of trust games described above.
Four additional series of experiments will employ between/within subject designs in which subjects are scanned alone, but under the deception that they are playing simultaneously with another subject.
Outcome Measures. The data collected will consist of behavioral measures of cognitive performance, self- and other-mental representation, trusting and trustworthy behavior, corresponding fMRI images, personality scales, ratings of relationship and status, and types of strategy used. The results gained from this protocol will be of value in identifying a set of neural regions mediating dynamic social interaction between people engaged in economic decision-making.
- Conditions
- Healthy
- Keywords
- PFC, Competition, Bargaining Games, Hyper-Brain Scanning, fMRI, Healthy Volunteer, HV
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 May 2004 (estimated)
- Study start15 May 2004
- Study completion4 Jan 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- More trials run by National Institute of Neurological Disorders and Stroke (NINDS)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 127 participants (actual)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00083317
- Sponsor's protocol ID
- 040192
- Other IDs
- 04-N-0192
- Status last verified
- 4 Jan 2012
- First submitted
- 19 May 2004
- Last updated
- 2 Jul 2017
- Results posted
- No
Publications
Bell AJ, Sejnowski TJ. An information-maximization approach to blind separation and blind deconvolution. Neural Comput. 1995 Nov;7(6):1129-59. doi: 10.1162/neco.1995.7.6.1129.
PubMed 7584893Belliveau JW, Kennedy DN Jr, McKinstry RC, Buchbinder BR, Weisskoff RM, Cohen MS, Vevea JM, Brady TJ, Rosen BR. Functional mapping of the human visual cortex by magnetic resonance imaging. Science. 1991 Nov 1;254(5032):716-9. doi: 10.1126/science.1948051.
PubMed 1948051Belliveau JW, Rosen BR, Kantor HL, Rzedzian RR, Kennedy DN, McKinstry RC, Vevea JM, Cohen MS, Pykett IL, Brady TJ. Functional cerebral imaging by susceptibility-contrast NMR. Magn Reson Med. 1990 Jun;14(3):538-46. doi: 10.1002/mrm.1910140311.
PubMed 2355835
Study at a glance
From the registry record, last updated by the sponsor on 2 Jul 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Role of the Prefrontal Cortex in Economic Decision-Making in Reciprocal Trust Games Using Functional Hyperscanning Neuroimaging
- ClinicalTrials.gov ID
- NCT00083317
- Acronym / sponsor ID
- 040192
- Conditions
- Healthy
- Keywords
- PFC, Competition, Bargaining Games, Hyper-Brain Scanning, fMRI, Healthy Volunteer, HV
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 127 participants (actual)
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)US National Institutes of Health
- Study start
- 15 May 2004
- Study completion
- 4 Jan 2012
- First posted
- 19 May 2004 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will identify which areas of the brain mediate the interaction between people involved in economic decision-making.
Healthy, right-handed native English speakers between 21 and 55 years of age may be eligible for this study. Candidates are screened with a telephone interview, a questionnaire to determine handedness, and a neurological examination if one has not been performed within the last year by an NIH physician.
Participants bargain for money by playing two-person trust games, while undergoing functional magnetic resonance imaging (fMRI). MRI uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The MRI scanner is a metal cylinder surrounded by a strong magnetic field. During the procedure, the subject lies on a stable that can slide in and out of the scanner, wearing earplugs to muffle loud knocking sounds that occur with electrical switching of the magnetic fields. Functional MRI involves taking MRI scans while the subject performs a task-this to learn about how the brain regions are involved in performing the task. For this test, the subject plays or watches two-person games involving trust. The game may be played against a stranger or a friend. The winner receives a cash payoff.
The subject performs one of the following two tasks during MRI scanning:
- Playing the trust games and indicating as quickly as possible by pressing a right or left button whether he or she wants to stop or continue playing, or
- Observing games that others have played and predicting as quickly as possible by pressing a right or left button whether the players wanted to stop or continue the games.
The test takes about 90 minutes. After the scan, participants complete written questionnaires about their experience in the scanner and their views on issues related to participating in competitive games.
...
Detailed description
Objective. The purpose of the protocol is to identify the brain regions mediating the social cooperation involved in economic decision-making, including whether negative mood and perceived interpersonal similarity affect behavior or brain regions utilized.
Study Population. Healthy, normal adult volunteers will play and observe two-person reciprocal trust games during functional neuroimaging against either real people or computers masquerading as real people.
Design. A between/within-subject, rapid event-related fMRI design will be employed for two series of experiments. In the first experiment, two persons-each in a separate MRI scanner-will interact with one another playing two-person reciprocal trust games while their brains are simultaneously scanned. In the second experiment, a third person will later observe the played games while in a scanner, trying to predict the decisions of the two other players in the first experiment. In the third experiment, a sad mood will be induced in half of the participants to examine if it affects levels of cooperative behavior and patterns of brain activation in the two types of trust games described above.
Four additional series of experiments will employ between/within subject designs in which subjects are scanned alone, but under the deception that they are playing simultaneously with another subject.
Outcome Measures. The data collected will consist of behavioral measures of cognitive performance, self- and other-mental representation, trusting and trustworthy behavior, corresponding fMRI images, personality scales, ratings of relationship and status, and types of strategy used. The results gained from this protocol will be of value in identifying a set of neural regions mediating dynamic social interaction between people engaged in economic decision-making.
Study design
Who may qualify
- Ages
- 21 to 55 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- In all the studies, subjects will consist of healthy, native English-speaking, right-handed volunteers, as measured by the Edinburgh Handedness Inventory (Oldfield, 1971). Subjects will range in age from 21 to 55 years old and they will be included regardless of race.
Key exclusion criteria (2 listed)
- Non-native English speakers and non-right handers will be excluded as mentioned above, as will non-neurologically normal volunteers. Subjects younger than 21 and older than 55 will be excluded. A urine pregnancy test will be employed with all women of childbearing age. The results must be negative in order to proceed with the MRI.
- Participants with any of the following: aneurysm clip; implanted neural stimulator; implanted cardiac pacemaker or auto-defibrillator; cochlear implant; ocular foreign body, e.g. metal shavings; permanent eyeliner; insulin pump; or irremovable body piercing will be excluded from the study due to the possible dangerous effects of the magnet upon metal objects in the body. Participants taking central nervous system active medications will be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jul 2017.
- Background: PubMed 7584893Bell AJ, Sejnowski TJ. An information-maximization approach to blind separation and blind deconvolution. Neural Comput. 1995 Nov;7(6):1129-59. doi: 10.1162/neco.1995.7.6.1129.
- Background: PubMed 1948051Belliveau JW, Kennedy DN Jr, McKinstry RC, Buchbinder BR, Weisskoff RM, Cohen MS, Vevea JM, Brady TJ, Rosen BR. Functional mapping of the human visual cortex by magnetic resonance imaging. Science. 1991 Nov 1;254(5032):716-9. doi: 10.1126/science.1948051.
- Background: PubMed 2355835Belliveau JW, Rosen BR, Kantor HL, Rzedzian RR, Kennedy DN, McKinstry RC, Vevea JM, Cohen MS, Pykett IL, Brady TJ. Functional cerebral imaging by susceptibility-contrast NMR. Magn Reson Med. 1990 Jun;14(3):538-46. doi: 10.1002/mrm.1910140311.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Healthy, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00083317, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2017.