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What is a nucleus accumbens?
Where is the shell located in the nucleus accumbens?
What are the two components of the nucleus accumbens?
Is the nucleus accumbens a ventral striatum?
Shell. The nucleus accumbens shell (NAcc shell) is a substructure of the nucleus accumbens. The shell and core together form the entire nucleus accumbens. Location: The shell is the outer region of the nucleus accumbens, and – unlike the core – is considered to be part of the extended amygdala, located at its rostral pole.
Oct 30, 2023 · Structurally and functionally, the nucleus accumbens can be divided into two components: the outer portion (shell) and the central portion (core). The shell typically builds strong connections with the limbic system, while the core is usually associated with the motor system.
- Medical Content
- 22 min
The nucleus accumbens (NAc) is considered the ventral striatum, which can be subdivided into the NAc core and shell (medial and lateral). The NAc shell is considered the most rostral portion of the extended amygdala and is thought of as the transition zone between the striatum and the amygdala.
Oct 18, 2019 · Abstract. The nucleus accumbens (NAc) is a subcortical brain structure known primarily for its roles in pleasure, reward, and addiction. Despite less focus on the NAc in pain research, it also plays a large role in the mediation of pain and is effective as a source of analgesia.
- Haley N Harris, Yuan B Peng
- 10.4103/1673-5374.266909
- 2020
- Neural Regen Res. 2020 Apr; 15(4): 597-605.
Abstract. The nucleus accumbens (NAc) is a key node of the brain’s circuitry that is responsible for translating motivation into action. It has been implicated in playing critical roles in virtually all forms of adaptive and pathological motivated behaviors.
- Anna M. Klawonn, Robert C. Malenka
- 10.1101/sqb.2018.83.037457
- 2018
- 2018
Jan 27, 2016 · Nucleus accumbens (NAc) neurons encode features of stimulus learning and action selection associated with rewards. The NAc is necessary for using information about expected outcome values to guide behavior after reinforcer devaluation. Evidence suggests that core and shell subregions may play dissociable roles in guiding motivated behavior.
Jul 14, 2021 · Dissociable roles of the nucleus accumbens core and shell subregions in the expression and extinction of conditioned fear - PMC. Journal List. Neurobiol Stress. v.15; 2021 Nov. PMC8319794. As a library, NLM provides access to scientific literature.
