Nucleus Accumbens
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A Nucleus Accumbens is a human brain region in the basal forebrain rostral to the preoptic area.
- Context:
- It is a component in the brain's Pleasure Center.
- It is associated with the Ventral Striatum.
- …
- Counter-Example(s):
- See: Nucleus Accumbens Shell, Human Reward Senson, Amygdala, Addiction.
References
2013
- http://en.wikipedia.org/wiki/Nucleus_accumbens
- The nucleus accumbens (NAcc), also known as the accumbens nucleus or as the nucleus accumbens septi (Latin for nucleus adjacent to the septum) in the basal forebrain rostral to the preoptic area.[1] It is considered to be a critical component in the brain's pleasure center due to its association with the ventral striatum. The nucleus accumbens and the olfactory tubercle collectively form the ventral striatum, which is part of the basal ganglia.[2]
Each brain hemisphere has its own nucleus accumbens. It is located where the head of the caudate and the anterior portion of the putamen meet just lateral to the septum pellucidum.
The nucleus accumbens can be divided into two structures — the nucleus accumbens core and the nucleus accumbens shell. These structures have different morphology and function.
Research has indicated the nucleus accumbens has an important role in reward, pleasure, reinforcement learning, laughter, addiction, aggression, fear, impulsivity and the placebo effect.[3][4][5][6]
- The nucleus accumbens (NAcc), also known as the accumbens nucleus or as the nucleus accumbens septi (Latin for nucleus adjacent to the septum) in the basal forebrain rostral to the preoptic area.[1] It is considered to be a critical component in the brain's pleasure center due to its association with the ventral striatum. The nucleus accumbens and the olfactory tubercle collectively form the ventral striatum, which is part of the basal ganglia.[2]
- ↑ Carlson, Neil R. Physiology of Behavior. 11th ed. Boston: Pearson, 2013. Print.
- ↑ Nucleus Accumbens
- ↑ Schwienbacher I, Fendt M, Richardson R, Schnitzler HU (2004). "Temporary inactivation of the nucleus accumbens disrupts acquisition and expression of fear-potentiated startle in rats". Brain Res. 1027 (1–2): 87–93. doi:10.1016/j.brainres.2004.08.037. PMID 15494160.
- ↑ The Placebo Effect in the NAC
- ↑ Dopamine Involved In Aggression - Medical News Today
- ↑ Basar, Koray, Thibaut Sesia, Henk Groenewegen, Harry W.M. Steinbusch, Veerle Visser-Vandewalle, and Yasin Temel. "Nucleus Accumbens and Impulsivity."Progress in Neurobiology 92.4 (2010): 533-57. Print.