Learning and memory

Recent articles

Image of brain cell activity in rat brains.

Sleep doesn’t just consolidate memories; it actively shapes them

The rapid eye movement (REM) phase preserves newly acquired memories, but deeper non-REM sleep helps to adapt and update them, according to “heroic” day-long electrode recordings in rats.

By Giorgia Guglielmi
6 May 2025 | 6 min listen
Patient being administered an EEG test.

Single-neuron recordings are helping to unravel complexities of human cognition

As this work begins to bear fruit, researchers “are becoming less afraid to ask very difficult questions that you can uniquely ask in people.”

By Claudia López Lloreda
14 March 2025 | 10 min listen
Research image of astrocytes in red activating alongside neurons in green in response to specific fear memories in mice.

Astrocytes star in memory storage, recall

The cells, long cast as support players in memory research, can activate or disrupt fear memories, according to a new study.

By Angie Voyles Askham
6 November 2024 | 5 min read
Photograph of two hands drawing overlapping red and blue waveforms on a chalkboard.

How to teach this paper: ‘Coordination of entorhinal-hippocampal ensemble activity during associative learning,’ by Igarashi et al. (2014)

Kei Igarashi and his colleagues established an important foundation in memory research: the premise that brain regions oscillate together to form synaptic connections and, ultimately, memories.

By Ashley Juavinett
4 November 2024 | 8 min read
Illustrated portrait of Loren Frank.

The value of math and spatial learning with Loren Frank

The Howard Hughes Medical Institute investigator discusses what drew him to study the brain and his current work at the University of California, San Francisco.

By Brady Huggett
1 April 2024 | 62 min listen
Computer-generated illustration of disgusting green food.

‘It must be something I ate’ is hard-wired into the brain

Feeling sick reactivates “novel flavor” neurons, according to a new study in mice, and points to a dedicated circuit for learning to avoid unsafe food.

By Angie Voyles Askham
29 March 2024 | 6 min read

Neurons making memories shush their neighbors

When neurons strengthen their synapses, they “infect” surrounding cells with a virus-like protein to weaken those cells’ excitatory connections, according to a new preprint.

By Holly Barker
22 March 2024 | 5 min read

Synaptic protein’s shape-shifting skills propel plasticity

SYNGAP supports learning without tapping its eponymous “GAP” enzymatic activity, according to a new study.

By Angie Voyles Askham
29 February 2024 | 0 min watch
Illustration of a starfish against a white backdrop.

Cognition in brainless organisms is redefining what it means to learn

A slew of simple creatures demonstrate forms of learning, making the case for cognitive science to expand beyond the boundaries of the human mind.

By Annie Melchor
31 January 2024 | 8 min read
A photograph of a crow against a dark backdrop

Number-associated neurons help crows link values to symbols

Comparable neurons also exist in primates, which shared a common ancestor with crows more than 300 million years ago, suggesting that the ability to “count” evolved independently in the two lineages.

By Kenna Hughes-Castleberry
19 January 2024 | 4 min read

Explore more from The Transmitter

Amina Abubakar translates autism research and care for Kenya

First an educator and now an internationally recognized researcher, the Kenyan psychologist is changing autism science and services in sub-Saharan Africa.

By Ruth Kadide Keah
29 May 2025 | 7 min read

Multisite connectome teams lose federal funding as result of Harvard cuts

The teams aim to develop tools to scale up mouse connectomics in preparation for eventually mapping an entire human brain.

By Angie Voyles Askham
28 May 2025 | 5 min read

Learning in living mice defies classic synaptic plasticity rule

Donald Hebb’s theory—memorably summarized as “cells that fire together, wire together”—does not explain the shifting hippocampal connections in mice learning to navigate a virtual environment, according to a new study.

By Sydney Wyatt
28 May 2025 | 5 min read