Apr 3, 2020

Disinhibition of the orbitofrontal cortex biases goal-directed behaviour in obesity

BioRxiv : the Preprint Server for Biology
L. NaefStephanie L Borgland


The lateral orbitofrontal cortex (lOFC) receives sensory information about food and integrates these signals with expected outcomes to guide future actions, and thus may play a key role in a distributed network of neural circuits that regulate feeding behaviour. Here, we reveal a novel role for the lOFC in the cognitive control of behaviour in obesity. Goal-directed behaviour is biased in obesity such that in obese animals, actions are no longer influenced by the perceived value of the outcome. Obesity is associated with reduced lOFC inhibitory drive, and chemogenetic reduction in GABAergic neurotransmission in the lOFC induces obesity-like impairments in goal-directed behaviour. Conversely, pharmacological or optogenetic restoration of inhibitory neurotransmission in the lOFC of obese mice reinstates flexible, goal-directed behaviour. Our results indicate that obesity hinders an individuals ability to make value representations about rewards, which in turn may influence how individuals make decisions in an obesogenic environment.

  • References
  • Citations


  • We're still populating references for this paper, please check back later.
  • References
  • Citations


  • This paper may not have been cited yet.

Mentioned in this Paper

Gene Polymorphism
Short Tandem Repeat
Biochemical Pathway
Oxidative Stress Pathway
HIF1A wt Allele
Polymerase Chain Reaction Analysis
NOS2 wt Allele
HIF1alpha protein

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.