An expanded view of energy homeostasis: Neural integration of metabolic, cognitive, and emotional drives to eat

Andrew C. Shin, Huiyuan Zheng, Hans Rudolf Berthoud

Research output: Contribution to journalArticlepeer-review

111 Scopus citations

Abstract

The traditional view of neural regulation of body energy homeostasis focuses on internal feedback signals integrated in the hypothalamus and brainstem and in turn leading to balanced activation of behavioral, autonomic, and endocrine effector pathways leading to changes in food intake and energy expenditure. Recent observations have demonstrated that many of these internal signals encoding energy status have much wider effects on the brain, particularly sensory and cortico-limbic systems that process information from the outside world by detecting and interpreting food cues, forming, storing, and recalling representations of experience with food, and assigning hedonic and motivational value to conditioned and unconditioned food stimuli. Thus, part of the metabolic feedback from the internal milieu regulates food intake and energy balance by acting on extrahypothalamic structures, leading to an expanded view of neural control of energy homeostasis taking into account the need to adapt to changing conditions in the environment. The realization that metabolic signals act directly on these non-traditional targets of body energy homeostasis brings opportunities for novel drug targets for the fight against obesity and eating disorders.

Original languageEnglish
Pages (from-to)572-580
Number of pages9
JournalPhysiology and Behavior
Volume97
Issue number5
DOIs
StatePublished - Jul 14 2009

Keywords

  • Appetite
  • Food hedonics
  • Food reward
  • Gut hormones
  • Hypothalamus
  • Motivation
  • Obesity

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