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The nucleus accumbens ( NAc or NAcc; also known as the accumbens nucleus, or formerly as the nucleus accumbens septi, Latin for ' nucleus adjacent to the septum ') is a region in the basal forebrain rostral to the preoptic area of the hypothalamus. [1] . The nucleus accumbens and the olfactory tubercle collectively form the ventral striatum.
- NAc or NAcc
- Nucleus accumbens shell, Nucleus accumbens core
- nucleus accumbens septi
Oct 30, 2023 · Key facts about the nucleus accumbens; Definition: Part of the ventral striatum with connections to the limbic system: Structure: Two parts: shell and core: Function: Connects the limbic system to the motor system Mediation of motivation, reward and pleasure, addiction, impulsivity, risk taking, survival and reproductive behaviours.
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Sep 21, 2023 · The nucleus accumbens is a region in the brain’s basal forebrain that plays a critical role in the reward circuit. It is involved in pleasure, reinforcement learning, and the processing of motivation and reward. Dysregulation of this area is often implicated in addiction, depression, and other psychiatric disorders.
The meaning of NUCLEUS ACCUMBENS is a nucleus forming the floor of the caudal part of the anterior prolongation of the lateral ventricle of the brain and receiving dopaminergic innervation from the ventral tegmental area as part of the mesolimbic pathway.
Sep 20, 2017 · What is Nucleus Accumbens? Definition. The nucleus accumbens is a brain part involved in functions such as motivation, reward or positive behavioral reinforcement. The role of nucleus accumbens is to integrate motivation along with the motor action.
Nucleus Accumbens. The nucleus accumbens was first described by Ziehen (1901) as the structure ventral to the anterior commissure, comprising the anterior, ventromedial part of the striatum that surrounds the bottom of the anterior horn of the lateral ventricle and extends dorsally into the lateral part of the septum.
Oct 18, 2019 · 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.
