Exploring the Intricacies of Memory and Cognition with Dr. Charan Ranganath

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Introduction

Welcome to a deep exploration of the intricate world of memory and cognition! In this episode of the Huberman Lab podcast, Professor Andrew Huberman speaks with Dr. Charan Ranganath, a leading expert in the field of memory, currently a professor of Psychology and Neuroscience at UC Davis. We cover a range of topics, from understanding how memory works and the emotional impact of memories, to practical tools for maintaining cognitive health, particularly as we age.

Understanding Memory

The Role of Memory in Life

Memory is not just about recalling facts or dates; it plays a crucial role in shaping our identity. Understanding where we come from and who we are allows us to make decisions about our future. People with memory deficits, such as those suffering from Alzheimer’s or other cognitive illnesses, struggle significantly not just with day-to-day tasks but also in contextualizing their experiences – recognizing family members, for instance, becomes fraught with complications.

How Memory Functions

At its core, memory is the brain's way of organizing information about past experiences. This organization allows us to anticipate the future based on prior occurrences. Dr. Ranganath mentions that memory can be likened to a simulation, informed by past experiences, which helps guide us in making decisions.

Deja Vu

One fascinating phenomenon discussed during the podcast is déjà vu, a feeling of having already experienced something. Dr. Ranganath explains that this sensation often arises when there’s an overlap between what we're experiencing and a prior context, contributing to a false sense of familiarity.