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Protocol Details

Effects of Arousal and Stress on Classical Conditioning

This study is NOT currently recruiting participants.

Summary | Eligibility | Citations | Contacts

Summary

Number

01-M-0185

Sponsoring Institute

National Institute of Mental Health (NIMH)

Recruitment Detail

Type: Completed Study; data analyses ongoing
Gender: Male & Female
Min Age: 18 Years
Max Age: 50 Years

Referral Letter Required

No

Population Exclusion(s)

Children;
Fetuses;
Pregnant Women;
Non-English Speaking

Keywords

Classical Conditioning;
Fear Conditioning;
Stress;
Learning;
Normal Volunteers

Recruitment Keyword(s)

Healthy Volunteer;
Normal Control;
Fear Conditioning

Condition(s)

Healthy Volunteers

Investigational Drug(s)

None

Investigational Device(s)

None

Intervention(s)

Device: Shock Device
Device: Auditory Startle Device

Supporting Site

National Institute of Mental Health

This study has several parts. One part will examine the influence of factors such as personality and past experience on reactions to unpleasant stimuli. Others will examine the effect of personality and emotional and attentional states on learning and memory.

When confronted with fearful or unpleasant events, people can develop fear of specific cues that were associated with these events as well as to the environmental context in which the events occurred via a process called classical conditioning. Classical conditioning has been used to model anxiety disorders, but the relationship between stress and anxiety and conditioned responses remains unclear. This study will examine the relationship between cued conditioning and context conditioning . This study will also explore the acquisition and retention of different types of motor, emotional, and cognitive associative processes during various tasks that range from mildly arousing to stressful.

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Eligibility

INCLUSION CRITERIA:

-Males and females

-Age 18-50

EXCLUSION CRITERIA:

-Pregnancy

-Any current ongoing medical illness

-Current Axis I disorders

-Past significant psychiatric disorders (e.g., psychotic disorders) according to Diagnostic and Statistical Manual (DSM)-IV

-Current alcohol or substance abuse according to DSM-IV criteria

-History of alcohol or substance dependence based on DSM-IV criteria within 6 months prior to screening

-Current psychotropic medication use

-Current or past organic central nervous system disorders, including but not limited to seizure disorder or neurological symptoms of the wrist and arms (e.g., carpal tunnel syndrome). The latter exclusion is for shock studies only.

-Positive urine toxicology screen

-Employees of National Institute of Mental Health (NIMH) or an immediate family member of a NIMH employee.


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Citations:

Fear-potentiated startle conditioning to explicit and contextual cues in Gulf War veterans with posttraumatic stress disorder

Baseline and fear-potentiated startle in panic disorder patients

Differential contribution of amygdala and hippocampus to cued and contextual fear conditioning

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Contacts:

Principal Investigator

Referral Contact

For more information:

Maryland Pao, M.D.
National Institute of Mental Health (NIMH)
NIHBC 10 - CRC BG RM 6-5332
10 CENTER DR
BETHESDA MD 20892
(301) 435-5770
paom@mail.nih.gov

Sandra Ononogbu
National Institute of Mental Health (NIMH)
National Institutes of Health
Building 10
Room 6-5340
10 Center Drive
Bethesda, Maryland 20892
(301) 775-1119
sandra.ononogbu@nih.gov

Office of Patient Recruitment
National Institutes of Health Clinical Center (CC)
Building 61, 10 Cloister Court
Bethesda, Maryland 20892
Toll Free: 1-800-411-1222
Local Phone: 301-451-4383
TTY: TTY Users Dial 7-1-1
ccopr@nih.gov

Clinical Trials Number:

NCT00026559

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