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Related Experiment Videos

Amygdala circuitry in attentional and representational processes.

Holland1, Gallagher

  • 1Department of Psychology: Experimental, Duke University, Durham, NC 27708-0086, USA.

Trends in Cognitive Sciences
|May 11, 1999
PubMed
Summary

The amygdala

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Area of Science:

  • Neuroscience
  • Behavioral Science
  • Cognitive Science

Background:

  • The amygdala is crucial for processing emotions and aversive events.
  • Its role in food-motivated learning is increasingly recognized.

Purpose of the Study:

  • To review evidence linking amygdala subsystems to food-motivated associative learning.
  • To differentiate the functions of the central nucleus and basolateral amygdala.

Main Methods:

  • Review of recent neuroscientific and behavioral studies.
  • Analysis of amygdalar subsystem connectivity and function.

Main Results:

  • The basolateral amygdala (BLA) is involved in acquiring and representing reinforcement value via connections with dopamine and orbitofrontal systems.
  • The central nucleus of the amygdala (CeA) contributes to attentional functions in conditioning through connections with cholinergic and striatal systems.

Conclusions:

  • Distinct amygdalar subsystems, BLA and CeA, mediate different aspects of food-motivated learning.
  • Understanding these subsystems' roles clarifies the neural basis of motivated behavior.

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