PNAS

Brain & Behavior

Most People Prefer Their Own Kind, Dutch Study Reveals

In a quiet survey room, Dutch residents faced a simple choice: which neighborhood to move to, which club to join.

Sep 2, 2025

Brain & Behavior

Why We Can’t Stop Believing Past Luck Shapes What Comes Next

A fair coin knows no memory, but our minds insist it does. In a massive study of more than 12,000 people, researchers at the University of Chicago and…

Aug 26, 2025

Technology

Neural Network Inventory Distinguishes 98 National Cultures

What we believe may carry the signature of where we are from. In a sweeping new study in PNAS Nexus, researchers used machine learning to show that values…

Aug 26, 2025

Physics

AI Reveals Hidden Physics in Cosmic Dust

Dusty plasmas, swirling with charged particles and found everywhere from Saturn's rings to lab experiments on Earth, are more mysterious than physicists once thought.

Aug 4, 2025

Brain & Behavior

Wealthy Nations Judge Rich People More Harshly Than Poor Ones

People in wealthy, egalitarian countries like Switzerland and Ireland are more likely to view excessive wealth as morally wrong compared to those in less equal societies, according to a comprehensive study of moral attitudes across 20 nations.

Jun 24, 2025

Brain & Behavior

AI Supercharges Russian Propaganda Machine Without Losing Its Punch

Russian propagandists have doubled their output of disinformation by leveraging artificial intelligence, all while maintaining the persuasive power of their messaging, according to a new study published last week in PNAS Nexus.

Apr 1, 2025

Brain & Behavior

Scientists Identify Critical "Midlife Window" for Preventing Age-Related Brain Decline

A landmark study published in PNAS has unveiled that brain aging follows a distinct yet nonlinear trajectory with critical transition points.

Mar 5, 2025

Brain & Behavior

Brain Scans Outperform Behavior in Predicting What Markets Really Want

New research suggests that our brains may reveal more about collective market behavior than our individual choices do—even with surprisingly small sample sizes.

Feb 25, 2025

Brain & Behavior

AI Writing Tools Quietly Neutralize Human Emotions

As large language models like ChatGPT become increasingly integrated into our daily digital communications, researchers have uncovered an unexpected effect:…

Feb 25, 2025

Brain & Behavior

Two-Week Digital Detox Makes Brain Feel 10 Years Younger, Study Finds

In an era where Americans spend nearly five hours daily glued to their smartphones, new research reveals that taking a break from mobile internet access can…

Feb 18, 2025

Health

Using CRISPR to remove extra chromosomes in Down syndrome

Japanese researchers have developed a precise genetic technique that can remove the extra chromosome responsible for Down syndrome in human cells, potentially opening new avenues for treating the most common genetic cause of cognitive impairment.

Feb 18, 2025

Health

Your Mouth Bacteria May Predict Your Dementia Risk, Study Shows

Scientists have discovered that the mix of bacteria in your mouth could serve as an early warning system for cognitive decline, with specific bacterial communities linked to both better and worse brain function.

Jan 28, 2025

Social Sciences

Study Reveals Possible Paths to Israeli-Palestinian Peace Despite Current Crisis

Pre-October 7th research identifies specific areas where compromise remains possible Even amid the current devastation in Gaza and Israel, new research…

Jan 21, 2025

Health

COVID-19 Infection May Accelerate Age-Related Vision Loss

Editor's note: During the culture wars spurred by the COVID 19 pandemic, it often occurred to us that if the infection led to rapid-onset blindness of many…

Dec 3, 2024