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An Aedes aegypti mosquito rests on clothing.
| 2 min read
Trained mosquitoes learned to associate the smell of the repellent with food and actively sought out DEET-covered skin, offering insight on how best to apply the repellent.

learning and memory

3D illustration of purple neurons.

An Immune Mechanism Maintains Memory

Novelty Activates a Long Noncoding RNA for Spatial Learning in Mice

(Left) The optic lobes are thought to be involved in visual processing. In this study, researchers found that guppies with larger optic lobes more quickly learned a visual discrimination task—identifying which color well contained food. (Right) The fish telencephalon is thought to be involved in spatial learning, memory, and inhibitory control. Here, the researchers found that a larger telencephalon might enhance the fish’s cognitive flexibility, allowing them to more quickly associate food with a new color after the researchers switched it.

Infographic: Two Guppy Brain Regions May Help Them Learn Tasks

Photo of a Guppy fish

Fish Brain Region Size Correlates with Cognitive Flexibility

Portrait of Chuck Stevens

Famed Neuroscientist Charles Stevens Dies at 88

Cartoon of a silhouetted person’s bright pink brain being shocked by jumper cables

Electrically Zapping Specific Brain Regions Can Boost Memory

A white lab mouse peers over the wall of a sprawling maze

Bacterial Metabolite May Regulate Cognition in Mice

Photo of wooden block letters

Distracted Brains Better at Parsing Unfamiliar Languages: Study

Illustration of gray bacteriophages approaching and infecting a red and orange bacteria that has multiple fimbria protruding from it.

Bacteria-Infecting Viruses in Gut Microbiome Linked to Cognition

Trending

A drawing of men and women holding boxes, resigning en mass from their jobs as editors.

Editors Mass Resign from Elsevier Journal After Editor-in-Chief Let Go

A team of cartoon scientists studying a giant pancreas.

Prolonged GLP-1 Exposure Remodels Gene Expression in the Pancreas by Flipping a Molecular Switch

Image of a Diploptera punctata cockroach.

Cockroach Milk Proteins Churn Out an Ig Nobel Win

In the TS 40th Anniversary template, Sarkis Mazmanian smiles in a black and white headshot photo on the left. In a photo on the right, he stands in front of a large image of a cross-section of the brain. He wears a navy jacket, a white shirt, and glasses.

Then and Now: Sarkis Mazmanian Finds Gut-Brain Links to Parkinson’s Disease

Multimedia

Essential Genes Are Dominantly Activated by Single Transcription Factors

Essential Genes Are Dominantly Activated by Single Transcription Factors

EpiCypher Logo
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
The Scientist Digest cover September 2026
September 2026

Multiplex Microscopy Becomes Easier with Encoded Antibodies

A new system that enables researchers to uniquely tag monoclonal antibodies for use in microscopy could help simplify complex imaging studies.

View this Issue
Essential Genes Are Dominantly Activated by Single Transcription Factors

Essential Genes Are Dominantly Activated by Single Transcription Factors

EpiCypher Logo
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Miltenyi
Best Practices for qPCR Assay Design and Optimization

Best Practices for qPCR Assay Design and Optimization

Bio-Rad

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