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An emerging role for the lateral habenula in aggressive behavior
Meghan Flanigan1, Hossein Aleyasin2, Aki Takahashi3
1Fishberg Department of Neuroscience and Graduate School of Biological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Pharmacology, Biochemistry, and Behavior
|May 14, 2017
Summary
The lateral habenula (LHb) may play a key role in regulating aggression and its rewarding aspects by influencing dopamine pathways. Understanding LHb function is crucial for addressing aggression in neuropsychiatric disorders.
Area of Science:
- Neuroscience
- Behavioral Biology
- Psychiatry
Background:
- Inter-male aggression is a fundamental social behavior with implications for health when dysregulated.
- Inappropriate aggression is linked to neuropsychiatric disorders and may involve atypical reward circuitry activation.
- The lateral habenula (LHb), a key node in reward circuitry, signals negative valence by inhibiting dopamine release.
Purpose of the Study:
- To explore the role of the lateral habenula (LHb) in aggression and its associated valence.
- To investigate the contribution of LHb outputs to the ventral tegmental area (VTA) and dorsal raphe nucleus (DRN) in aggression.
Main Methods:
- This study is a discussion and review of existing evidence.
- It synthesizes findings on the lateral habenula's function in reward and social behavior.
Main Results:
- Strong LHb outputs to the VTA and DRN are implicated in aggression.
- These pathways likely contribute to the rewarding components of aggressive behavior.
Conclusions:
- The LHb is a critical regulator of aggression and its valence.
- Further research is needed to understand how LHb circuitry modulates motivation and reward in aggression.
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