Learning and Memory

Hippocampus Is the Brain’s Storyteller

People love stories. We find it easier to remember events when they are part of an overarching narrative. But in real life, the chapters of a story don’t follow smoothly one from another. Other things happen in between. A new brain imaging study from the Center for Neuroscience at the University of California, Davis, shows that the hippocampus is the brain’s storyteller, connecting separate, distant events into a single narrative. The work is published Sept. 29 in Current Biology.

Center for Neuroscience Faculty Discusses 'Did this Memory Really Happen?' on Every Little Thing Podcast

Charan Ranganath, Ph.D., UC Davis professor of psychology at the Center for Neuroscience, was a guest on the Every Little Thing podcast episode Memory Game: Did This Meal Really Happen? on May 10, 2021. Dr. Ranganath spoke with hosts Annette Heist and Jorge Just about how we form memories and the tricky nature of deciding about whether a memory is "true." Listen to the full episode here.

Professor Charan Ranganath Featured on NPR's Life Kit Episode: You're Probably Not As Open-Minded As You Think. Here's How To Practice

NPR's Life Kit host Rose Eveleth interviewed UC Davis neuroscientist Charan Ranganath, a psychology professor and Director of the Memory and Plasticity Program at the Center for Neuroscience for the podcast episode You're Probably Not As Open-Minded As You Think. Here's How to Practice on May 3, 2021.  Dr. Ranganath discussed why being calm and curious helps us be more open-minded. Read or listen to the full story here.

New brainwave device shown to boost memory performance

Researchers have revealed a new brainwave device that supposedly boosts our ability to remember significantly more information.

A device that gives us a significantly enhanced memory has long been a trope of science fiction, and perhaps the dreams of many a student. Now, researchers at University of California, Davis, have revealed a somewhat similar device that enhances brainwaves crucial to our ability to recall information.

Read Article

UC Davis neuroscientists advance learning and memory research to decode how our brains work

UC Davis neuroscientists advance learning and memory research to decode how our brains work by David Slipher For astrophysicists, the final frontier is outer space, but ask a neuroscientist, and the greatest quest for scientific exploration lies within your brain. 

Vastly more advanced than any supercomputer, the complexity and versatility of the human brain is awe-inspiring. Of all its abilities, learning from new experiences might be the most powerful and astounding feature. But how does learning occur? And how do we remember what we learn? 

Why You Forget Names Immediately—And How to Remember Them

Of all the social gaffes, none is perhaps more common than meeting a new person, exchanging names and promptly forgetting theirs — forcing you to either swallow your pride and ask again, or languish in uncertainty forever.

Why do we keep making this mistake? There are a few potential explanations, says Charan Ranganath, the director of the Memory and Plasticity Program at the University of California, Davis.

Article

Learning Enhances Synapses Between “Memory Cells” in Mice

When making memories, certain neurons form larger, denser connections, according to a study published today (April 26) in Science.

Scientists have long attempted to understand where, and how, the brain stores memories. At the beginning of the 20th century, German scientist Richard Semon coined the term “engram” to describe the hypothetical physical representations of memories in the brain.

Memory reply prioritizes high-reward experiences

Why do we remember some events, places and things, but not others? Our brains prioritize rewarding memories over others, and reinforce them by replaying them when we are at rest, according to new research from the University of California, Davis, Center for Neuroscience, published Feb. 11 in the journal Neuron.

“Rewards help you remember things, because you want future rewards,” said Professor Charan Ranganath, a UC Davis neuroscientist and senior author on the paper. “The brain prioritizes memories that are going to be useful for future decisions.”

Manipulating memory with light

Just look into the light: not quite, but researchers at the UC Davis Center for Neuroscience and Department of Psychology have used light to erase specific memories in mice, and proved a basic theory of how different parts of the brain work together to retrieve episodic memories. The work was published Oct. 9 in the journal Neuron. 

Article