Psychologists at Purdue University have come up with an interesting twist on the old notion of the power of positive thinking. Call it the power of positive perception: They've shown that you may be able to improve your golf game by believing the hole you're aiming for is larger than it really is.

Jessica Witt, who studies how perception and performance are related, decided to look at golf — specifically, how the appearance of the hole changes depending on whether you're playing well or poorly.

In Republican-dominated Nebraska, government leaders often line up together, but lately a political tornado has ripped through this orderly scene.

A political showdown over taxpayer funding of prenatal care for illegal immigrants has produced some unusual political splits and alliances in the statehouse of the Cornhusker State.

Tina Brown, editor of The Daily Beast and Newsweek, tells us what she's been reading in a feature that Morning Edition likes to call "Word of Mouth." This month, Brown has been thinking about the contributions of journalists to global culture.

The Rise Of Hitler, As Seen By Americans Abroad

Paul Schubert and his wife decided to buy a new car last summer — a really fuel-efficient one. After a lot of research, they settled on a Toyota Prius. But there was a problem: They couldn't find one.

The tsunami that devastated Japan in March had dried up supplies of the Prius, which is made in Japan, and a dealer told them they would have to wait — "about four months," Schubert says. "And we thought, well, it'd be, probably, end of November, early December before we were going to have a car."

The Schuberts still had a working car.

Last year when Andrew Ng, a computer science professor at Stanford University, put his machine-learning class online and opened enrollment to the world, more than 100,000 students signed up.

"I think all of us were surprised," he says.

Ng had posted lectures online before, but this class was different.

"This was actually a class where you can participate as a student and get homework and assessments," he said.

The House is scheduled to vote this week on a small-business tax cut bill offered up by Republicans. It's just the latest piece of legislation to focus on small businesses, which are widely praised in the political discourse as engines of job creation. The adoration is nearly universal — and it reflects something beyond economic reality.

"Small businesses create 2 out of every 3 jobs in this economy, so our recovery depends on them," President Obama said in 2012 at a New Jersey sandwich shop where he met with small-business owners.

Can I give you a word I love that you just don't hear anymore?

Zany.

It used to be that all kinds of stuff was described as "zany," but it seems to have mostly gone out for fancier words like "dysfunctional."

Now, I bring this up because most sports franchises are pretty standard issue. Oh, some are rich, some poor, some win, some lose, but only one currently, to my mind, descends to the dear old level of zany. That is the Miami Marlins, formerly the Florida Marlins, or, now, as I like to call them, given their location in Little Havana, Los Zany-os.

A campaign to introduce new childhood vaccines to Haiti will save tens of thousands of lives over the next decade, Dr. Thomas Frieden told Shots at the end of a two-day tour of the beleaguered country.

"This is an enormous step forward for Haiti," says Frieden, director of the U.S. Centers for Disease Control and Prevention. "This is a big deal."

Sad news for fans of drummer Levon Helm: The longtime member of The Band is in the final stages of cancer, his family said Tuesday.

"Please send your prayers and love to him as he makes his way through this part of his journey," his wife and daughter wrote on the 71-year-old singer's website.

More than 99 million federal taxpayers had filed their returns as of Tuesday, with more than 80 million of those expecting a refund.

People who file at the last minute — and Tuesday is this year's deadline — are somewhat more likely to owe money to the government. And if Congress and the president don't act, next year could see many more Americans paying higher taxes.

That's not because either President Obama or presumptive Republican challenger Mitt Romney advocate a tax increase for most Americans.