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Assessment of Social Transmission of Food Preferences Behaviors
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Human spatial memory implicitly prioritizes high-calorie foods.

Rachelle de Vries1,2, Paulina Morquecho-Campos3, Emely de Vet4

  • 1Division of Human Nutrition and Health, Wageningen University and Research, P.O. Box 17, 6700 AA, Wageningen, The Netherlands. rachelle.devries@wur.nl.

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Humans show enhanced spatial memory for high-calorie foods, recalling their locations more accurately. This cognitive bias, driven by evolutionary foraging needs, is evident even with only olfactory cues.

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Area of Science:

  • Cognitive neuroscience
  • Evolutionary psychology
  • Human sensory perception

Background:

  • Efficiently locating nutritious food is a critical adaptive challenge for all species.
  • Human spatial cognition plays a vital role in resource acquisition and survival.

Purpose of the Study:

  • To investigate whether human spatial memory is biased towards high-calorie food sources.
  • To determine if this bias is influenced by sensory information, personal preference, or familiarity.

Main Methods:

  • A large-scale, multisensory experiment involving participants navigating a maze-like environment.
  • Covert testing of incidental location memory for various food items with differing caloric content.
  • Controlled sensory conditions, including a solely olfactory environment.

Main Results:

  • Participants demonstrated significantly better incidental learning and recall of locations associated with high-calorie foods.
  • This high-calorie bias in spatial memory persisted irrespective of explicit liking (hedonic value) or familiarity with the foods.
  • The bias was observable even in a restricted sensory setting relying only on olfactory cues.

Conclusions:

  • Human spatial memory exhibits an evolved bias favoring energy-dense food locations, reflecting ancestral foraging strategies.
  • This cognitive system appears optimized for environments where efficient calorie acquisition was paramount.
  • The human olfactory sense possesses significant, often underestimated, capabilities in guiding spatial memory and behavior.