The authors argue eating behavior is highly intertwined with learning and memory processes; they suggest memory systems may have evolved to help animals obtain food

Eating Behavior as a New Frontier in Memory Research. Benjamin M. Seitz, A. Janet Tomiyama, Aaron P. Blaisdell. Neuroscience & Biobehavioral Reviews, June 2 2021. https://doi.org/10.1016/j.neubiorev.2021.05.024

Highlights

• We argue eating behavior is highly intertwined with learning and memory processes.

• We review a wide range of literature to support this position.

• We identify existing gaps of knowledge and highlight areas for future research.

• We suggest memory systems may have evolved to help animals obtain food.

Abstract: The study of memory is commonly associated with neuroscience, aging, education, and eyewitness testimony. Here we discuss how eating behavior is also heavily intertwined—and yet considerably understudied in its relation to memory processes. Both are influenced by similar neuroendocrine signals (e.g., leptin and ghrelin) and are dependent on hippocampal functions. While learning processes have long been implicated in influencing eating behavior, recent research has shown how memory of recent eating modulates future consumption. In humans, obesity is associated with impaired memory performance, and in rodents, dietary-induced obesity causes rapid decrements to memory. Lesions to the hippocampus disrupt memory but also induce obesity, highlighting a cyclic relationship between obesity and memory impairment. Enhancing memory of eating has been shown to reduce future eating and yet, little is known about what influences memory of eating or how memory of eating differs from memory for other behaviors. We discuss recent advancements in these areas and highlight fruitful research pursuits afforded by combining the study of memory with the study of eating behavior.

Keywords: memoryeating behaviormnemonic control of eatingepisodic memoryobesityevolution