Related Experiment Videos
Impulsive aggression and central serotonergic system function in humans: an example of a dimensional brain-behavior
1Department of Psychiatry, Medical College of Pennsylvania, Eastern Pennsylvania Psychiatric Institute, Philadelphia 19129.
International Clinical Psychopharmacology
|January 1, 1992
Summary
Reduced central serotonin (5-HT) system function is linked to suicidal and impulsive aggressive behaviors in individuals with mood and personality disorders. This suggests a biological correlate involving 5-HT post-synaptic receptor function.
Area of Science:
- Neuroscience
- Psychiatry
- Behavioral Science
Background:
- Decades of research suggest a link between central serotonergic (5-HT) system function and suicidal/impulsive aggressive behaviors.
- This relationship is particularly noted in patients diagnosed with psychiatric disorders.
Purpose of the Study:
- To review studies investigating the role of central 5-HT system function in regulating suicidal and impulsive aggressive behavior in humans.
- To explore this relationship in both healthy males and males with major mood and/or personality disorders.
Main Methods:
- Utilized pharmacochallenge strategies to assess central 5-HT system function.
- Employed neurochemical strategies to investigate the 5-HT system's role.
- Reviewed studies conducted on healthy individuals and psychiatric patient cohorts.
Main Results:
- Reduced overall central 5-HT function in the limbic-hypothalamic system correlates with suicidal and/or impulsive aggressive behaviors.
- Diminished 5-HT post-synaptic receptor function in this brain region appears to be a significant biological correlate.
Conclusions:
- Central 5-HT system function plays a crucial role in the regulation of suicidal and impulsive aggressive behaviors.
- Impaired 5-HT post-synaptic receptor function in the limbic-hypothalamic system may represent a key biological marker for these behaviors.