Extended amygdala

The extended amygdala is a macrostructure in the brain involved in processing reward perception that is defined by connectivity and neurochemical staining.[1][2] It includes the central medial amygdala, sublenticular substantia innominata, the nucleus accumbens shell, and the stria terminalis.[1] The boundaries are indistinct in Nissl stained sections.[2]


  1. 1 2 Malenka RC, Nestler EJ, Hyman SE (2009). "Chapter 15: Reinforcement and Addictive Disorders". In Sydor A, Brown RY. Molecular Neuropharmacology: A Foundation for Clinical Neuroscience (2nd ed.). New York: McGraw-Hill Medical. p. 376. ISBN 9780071481274. A macrostructure postulated to integrate many of the functions of this circuit is described by some investigators as the extended amygdala. The extended amygdala is said to comprise several basal forebrain structures that share similar morphology, immunocytochemical features, and connectivity and that are well suited to mediating aspects of reward function; these include the bed nucleus of the stria terminalis, the central medial amygdala, the shell of the NAc, and the sublenticular substantia innominata.
  2. 1 2 Heimer L (1995). The Human Brain and Spinal Cord: Functional Neuroanatomy and Dissection Guide Second Edition. New York: Springer Verlag. OCLC 474709054.

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