Memories of past meals influence future food intake in rats

Researchers have identified cells in the brains of male rats that appear to control future food intake by preserving memories of past meals. The study, published in eNeuro, lends support to the idea of boosting meal memories as a strategy for managing overeating.

Preliminary research suggests a role for two areas of the hippocampus in regulating future eating. Reilly Hannapel, Marise Parent, and colleagues found that inhibiting the activity of pyramidal neurons in the dorsal or ventral hippocampus during or after, but not before, a meal caused rats to start their next meal sooner. Interrupting the activity of these cells after the first meal additionally caused rats to consume more food during their next meal even though the activity of these cells was no longer disrupted.

The hippocampal cells manipulated in this study may help consolidate memory of the previous meal, which could serve as a satiation signal that outlasts appetite-regulating hormones to inform future eating behavior. By establishing a mechanism by which the hippocampus regulates eating, these findings could help to explain the link between hippocampal dysfunction and obesity.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Society for Neuroscience. (2019, January 16). Memories of past meals influence future food intake in rats. News-Medical. Retrieved on May 25, 2019 from https://www.news-medical.net/news/20190116/Memories-of-past-meals-influence-future-food-intake-in-rats.aspx.

  • MLA

    Society for Neuroscience. "Memories of past meals influence future food intake in rats". News-Medical. 25 May 2019. <https://www.news-medical.net/news/20190116/Memories-of-past-meals-influence-future-food-intake-in-rats.aspx>.

  • Chicago

    Society for Neuroscience. "Memories of past meals influence future food intake in rats". News-Medical. https://www.news-medical.net/news/20190116/Memories-of-past-meals-influence-future-food-intake-in-rats.aspx. (accessed May 25, 2019).

  • Harvard

    Society for Neuroscience. 2019. Memories of past meals influence future food intake in rats. News-Medical, viewed 25 May 2019, https://www.news-medical.net/news/20190116/Memories-of-past-meals-influence-future-food-intake-in-rats.aspx.

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News-Medical.Net.
Post a new comment
Post
You might also like... ×
Damage to anxiety-associated brain region heightens monkeys’ defensive response