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Does oral experience terminate ingestion?

S E Swithers1, W G Hall

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

Appetite
|October 1, 1994
PubMed
Summary
This summary is machine-generated.

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Repeated sweet taste exposure in rat pups reduces their desire to eat, a phenomenon called oral habituation. This oral habituation significantly contributes to the feeling of fullness, or satiety.

Area of Science:

  • Neuroscience
  • Behavioral Science
  • Physiology

Background:

  • Ingestive behavior is complex, influenced by both oral and post-ingestive factors.
  • Understanding the immediate control of ingestion is crucial for explaining satiety.

Purpose of the Study:

  • To investigate the role of oral experience in terminating ingestion.
  • To propose oral habituation as a key mechanism for satiety.

Main Methods:

  • Studies of ingestive behavior in developing rat pups.
  • Repeated oral stimulation with sweet solutions.
  • Assessment of oral responsiveness and its specificity.

Main Results:

  • Repeated oral stimulation led to decreased oral responsiveness, specific to the experienced flavor.

Related Experiment Videos

  • This diminished responsiveness persisted for several hours.
  • Oral habituation was identified as a significant factor in satiety onset.

    • Conclusions:

    • Oral habituation, an experience-based decrement in responsiveness, largely explains satiety.
    • Post-ingestive feedback may interact with or influence oral habituation.
    • The pattern of stimulus presentation affects oral habituation, adding complexity to satiety regulation.