Psychology professor Daniel T. Gilbert and economics professor N. Gregory Mankiw asked the audience, “What is your N?” in a conversation about psychology, economics, and happiness on Monday.

Every Friday, The Crimson publishes a selection of articles that were printed in our pages in years past. April 2, 1929: Historic Engine Makes Debut in Square Today At exactly five minutes past one today a fire engine of the Cambridge Catamounts, historic New England fire-fighting aggregation, drawn by six "Fire B'hoys" will make its appearance on Harvard Square. The engine, the one to be used by the Hasty Pudding Club for its production "Fireman, Save my Child," will start from an unrevealed place on Church Street and go up to the Square.

Babies are able to differentiate minute sound distinctions that would otherwise be lost to adults, University of Washington professor of speech and hearing sciences Patricia K. Kuhl said on Tuesday.

According to Harvard psychology professor Steven A. Pinker, who gave a talk at the Honan-Allston Branch of the Boston Public Library Tuesday evening, we are in the least violent era of human history.

A recent study by Harvard psychologists found that a smart phone application could reduce anxiety for people suffering from social anxiety disorder and generalized anxiety.

March 11 marked the one year anniversary of the earthquake and tsunami disasters in Japan. In 2012, the aftereffects of the natural disaster have not yet subsided, and many in Japan still find themselves without home or job. A Cambridge-based fundraising initiative called Bake For Japan hopes to give buyers the chance to make a difference in the lives of impacted individuals while simultaneously indulging buyer's sweet tooths.

If there is one list we all strive to be on more than the list at the Fly, it's Santa's nice list. So in the midst of the holiday season, don't forget to be kind to the people around you. If Santa isn't strong enough motivation, try this: studies show that taking moral action can result in increased physical strength and endurance.

Harvard University is composed of people who excel at many things, but particularly at self-promotion. Here are five incredibly simple ways to tell if your companion is really a true artist or merely a poseur.

Bright Christmas lights and reused psychology conference posters spell out the word "OCCUPY" in large letters through the seventh story window of William James Hall.