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Related Experiment Video

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A Conflict Model of Reward-seeking Behavior in Male Rats
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Striatonigrostriatal Spirals in Addiction.

Andy Sivils1, John Q Wang1, Xiang-Ping Chu1

  • 1Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, United States.

Frontiers in Neural Circuits
|December 27, 2021
PubMed
Summary

The striatonigrostriatal (SNS) spirals in the basal ganglia are vital for the brain's reward system. Understanding these circuits offers new therapeutic targets for addiction treatment.

Keywords:
addictionbasal ganglia circuitsbehaviordopamineneurotransmitterreward systemstriatonigrostriatal spirals

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Area of Science:

  • Neuroscience
  • Behavioral Science
  • Addiction Research

Background:

  • The biological reward system is fundamental to animal and human behavior.
  • Basal ganglia are known to be involved in reward processing, learning, and decision-making.
  • The current substance use epidemic necessitates effective treatment strategies.

Purpose of the Study:

  • To clarify the physiological role of striatonigrostriatal (SNS) spirals in the reward system.
  • To explore the pathophysiological involvement of SNS spirals in addiction.
  • To summarize neurotransmitter functions within SNS circuits for therapeutic insights.

Main Methods:

  • Review of existing literature on basal ganglia function and reward pathways.
  • Analysis of the role of dopamine and glutamate neurotransmission in SNS circuits.
  • Examination of the shift from goal-directed to habitual behavior.

Main Results:

  • Striatonigrostriatal (SNS) spirals are integral components of basal ganglia reward circuits.
  • These circuits play a key role in the transition from goal-directed to habitual behaviors.
  • Neurotransmitters like dopamine and glutamate are crucial modulators within SNS pathways.

Conclusions:

  • SNS spirals are critical intermediaries in behavioral regulation, particularly in the development of habits.
  • Dysfunction in SNS circuits contributes to the perpetuation of substance use disorders.
  • Targeting SNS circuits presents a promising avenue for novel addiction therapies.