Related Experiment Videos
Suicidal behavior, impulsiveness and serotonin
1Laboratory of Clinical Studies, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland.
Abstract:
The authors review the accumulating evidence from preclinical, clinical and postmortem studies suggesting that abnormality in serotonin systems may be associated with both attempts at suicide and aggression towards others and inanimate objects. Although these behaviors are multidetermined they often involve poor impulse control, which may reflect low central serotonin turnover. The need for further studies of possible peripheral biological markers for suicidal and impulsive behavior is discussed.
Insights
Abnormal serotonin systems are linked to suicide attempts and aggression, potentially due to impaired impulse control. Further research into biological markers for these behaviors is needed.
Area of Science:
- Neuroscience
- Psychiatry
- Behavioral Science
Background:
- Accumulating evidence suggests a link between serotonin system abnormalities and suicidal behavior.
- Aggression towards others and objects may also be associated with altered serotonin pathways.
- Poor impulse control is a common feature in these behaviors and may relate to serotonin turnover.
Purpose of the Study:
- To review evidence connecting serotonin system dysfunction to suicidal and aggressive behaviors.
- To explore the role of central serotonin turnover in impulse control deficits.
- To highlight the need for research into peripheral biological markers for suicidal and impulsive actions.
Main Methods:
- Review of preclinical studies.
- Analysis of clinical data.
- Examination of postmortem findings.
Main Results:
- Evidence suggests a correlation between serotonin system abnormalities and both suicide attempts and aggression.
- Low central serotonin turnover is implicated as a potential neurobiological basis for poor impulse control.
- The reviewed studies underscore the complexity and multifactorial nature of these behaviors.
Conclusions:
- Serotonin system dysfunction is a significant factor associated with suicidal and aggressive behaviors.
- Further investigation into peripheral biological markers is crucial for understanding and potentially predicting these behaviors.
- Understanding the neurobiology of impulse control is key to addressing aggression and suicidality.