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TitleThe orbitofrontal cortex, food intake and obesity
Publication TypeJournal Article
Year of Publication2020
AuthorsSeabrook, Lauren T., and Stephanie L. Borgland
JournalJ Psychiatry Neurosci
Volume45
Issue5
Pagination304-312
Date Published2020 09 01
ISSN1488-2434
Abstract

Obesity is a major health challenge facing many people throughout the world. Increased consumption of palatable, high-caloric foods is one of the major drivers of obesity. Both orexigenic and anorexic states have been thoroughly reviewed elsewhere; here, we focus on the cognitive control of feeding in the context of obesity, and how the orbitofrontal cortex (OFC) is implicated, based on data from preclinical and clinical research. The OFC is important in decision-making and has been heavily researched in neuropsychiatric illnesses such as addiction and obsessive–compulsive disorder. However, activity in the OFC has only recently been described in research into food intake, obesity and eating disorders. The OFC integrates sensory modalities such as taste, smell and vision, and it has dense reciprocal projections into thalamic, midbrain and striatal regions to fine-tune decision-making. Thus, the OFC may be anatomically and functionally situated to play a critical role in the etiology and maintenance of excess feeding behaviour. We propose that the OFC serves as an integrative hub for orchestrating motivated feeding behaviour and suggest how its neurobiology and functional output might be altered in the obese state.

DOI10.1503/jpn.190163
Alternate JournalJ Psychiatry Neurosci
PubMed ID32167268
PubMed Central IDPMC7850155