Shankar Vedantam

Many people start exploring their sexuality in college. The lessons they learn about intimacy and attraction during these years lay a foundation for the rest of their lives.

"I have students who have had sex many times drunk but have never held someone's hand," says Occidental University sociologist Lisa Wade.

After you read this sentence, pause for a moment to think back on advertisements you first heard when you were a child.

Perhaps you recall a favorite jingle or the catchphrase of a cereal mascot. You probably can remember more than just one.

This week, we look at the shelf life of commercials. According to University of Arizona researcher Merrie Brucks, an ad we watched when we were five years old can influence our buying behavior when we're 50.

Paul Rozin has been studying the psychology and culture of food for more than 40 years. And he's come to appreciate that food fills many of our needs, but hunger is just one.

"Food is not just nutrition that goes in your mouth or even pleasant sensations that go with it," he says. "It connects to your whole life, and it's really a very important part of performing your culture and experiencing your culture."

Copyright 2018 NPR. To see more, visit https://www.npr.org.

DAVID GREENE, HOST:

Nearly a quarter century ago, a group of women accused a prominent playwright of sexual misconduct. A Boston newspaper published allegations of sexual harassment, unwanted touching and forced kissing. For the most part, the complaints went nowhere.

In 2017, more women came forward with accusations. This time, people listened.

On this episode of Hidden Brain, we explore the story through the lens of social science and ask, "Why Now?"

If you've ever visited the palm-lined neighborhoods of Beverly Hills, you've probably noticed that the rich and famous aren't the only ones drawn there.

Stargazers also flock to this exclusive enclave, seeking a chance to peer into — and fantasize about — the lives of movie stars and film directors.

Call it adulation, adoration, idolization: we humans are fascinated by glamour and power.

But this turns out to be only one side of our psychology.

After you read this sentence, pause for a moment to think back on advertisements you first heard when you were a child.

Perhaps you recall a favorite jingle or the catchphrase of a cereal mascot. You probably can remember more than just one.

On this week's radio replay, we look at the shelf life of commercials. According to University of Arizona researcher Merrie Brucks, an ad we watched when we were five years old can influence our buying behavior when we're fifty.

People who spend time with young children know firsthand the power of music.

It's easy entertainment.

And any teacher who works in early childhood will tell you that singing can yield amazing results. "If we didn't sing the cleanup song, I don't think anything would have gotten cleaned up," says Laura Cirelli, who worked as an assistant at a day care center in the late 2000s.

But there may be other ways — surprising ways — in which music plays a role in raising a human.

This week, we look at the language we use around race and religion, and what it says about the culture we live in.

Are you racist?

It's a question that makes most of us uncomfortable and defensive.

Harvard University psychologist Mahzarin Banaji says while most people don't feel they're racist, they likely carry unfavorable opinions about people of color — even if they are people of color themselves.

Banaji is one of the creators of the Implicit Association Test, a widely-used tool for measuring a person's implicit biases. She says it's important to acknowledge that the individual mind sits in society.

In 2006, Derek Amato suffered a major concussion from diving into a shallow swimming pool. When he woke up in the hospital, he was different. He discovered he was really good a playing piano.

It may sound like the plot of a movie: police find a young man dead with stab wounds. Tests quickly show he'd had Ebola.

Officials realize the suspects in the case, men in a local gang, may have picked up and spread Ebola across the slum. These men are reluctant to quarantine themselves and some – including a man nicknamed "Time Bomb" – cannot even be found.

This scenario actually unfolded in the West African country of Liberia in 2015. And what followed was a truly unconventional effort by epidemiologists to stop a new Ebola outbreak.

RACHEL MARTIN, HOST:

President Trump has talked an awful lot about fake news this past year, and it's not just the president. Other Republicans use this term. Democrats use it. It has become an increasingly partisan phrase. Don't like something? Call it fake news. Social science research explores how our minds actually push away information that gets in the way of our feelings and desires. NPR social science correspondent Shankar Vedantam talked with our own David Greene about this.

DAVID GREENE, HOST:

Hi, Shankar.

SHANKAR VEDANTAM, BYLINE: Hi, David.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

ROBERT SIEGEL, HOST: