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Eating beyond metabolic need: how environmental cues influence feeding behavior
1Department of Psychology, Michigan State University, East Lansing, MI 48824-1101, USA. awj@msu.edu
Trends in Neurosciences
|January 22, 2013
Summary
Animals control eating by balancing current needs with future energy demands, influenced by learned environmental cues. Understanding these complex ingestive behaviors is key to addressing the obesity epidemic.
Area of Science:
- Neuroscience
- Physiology
- Behavioral Science
Background:
- Ingestive behavior is controlled by complex systems integrating internal states and external factors.
- Recent research differentiates between homeostatic (energy balance) and hedonic (pleasure/reward) feeding mechanisms.
Purpose of the Study:
- To review how environmental cues influence homeostatic and hedonic signals controlling ingestion.
- To explore the link between learned cues, overconsumption, and the obesity epidemic.
Main Methods:
- Literature review of neurobiological and behavioral studies on ingestive behavior.
- Analysis of how environmental learning impacts brain signals related to appetite and food reward.
Main Results:
- Environmental cues can enhance the appeal of food and increase the desire to overconsume.
- Learned associations between cues and food impact both homeostatic and hedonic pathways.
Conclusions:
- Understanding the interplay of learned cues and internal states is crucial for explaining overconsumption.
- Elucidating these mechanisms is vital for developing strategies to combat the rising rates of obesity.
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