My picks from ScienceDaily

Humans Appear Hardwired To Learn By 'Over-Imitation':

Children learn by imitating adults--so much so that they will rethink how an object works if they observe an adult taking unnecessary steps when using that object, according to a new Yale study.

Subliminal Smells Bias Perception About A Person's Likeability:

Anyone who has bonded with a puppy madly sniffing with affection gets an idea of how scents, most not apparent to humans, are critical to a dog's appreciation of her two-legged friends. Now new research from Northwestern University suggests that humans also pick up infinitesimal scents that affect whether or not we like somebody.

Free Software Brings Affordability, Transparency To Mathematics:

Until recently, a student solving a calculus problem, a physicist modeling a galaxy or a mathematician studying a complex equation had to use powerful computer programs that cost hundreds or thousands of dollars. But an open-source tool based at the University of Washington won first prize in the scientific software division of Les Trophées du Libre, an international competition for free software.

Brain Systems Become Less Coordinated With Age, Even In The Absence Of Disease:

Some brain systems become less coordinated with age even in the absence of Alzheimer's disease, according to a new study from Harvard University. The results help to explain why advanced age is often accompanied by a loss of mental agility, even in an otherwise healthy individual.

Pass The Popcorn! Study Finds That Film Enjoyment Is Contagious:

Loud commentary and cell phone fumbling may be distracting, but new research suggests that the presence of other people may enhance our movie-watching experiences. Over the course of the film, movie-watchers influence one another and gradually synchronize their emotional responses. This mutual mimicry also affects each participant's evaluation of the overall experience -- the more in sync we are with the people around us, the more we like the movie.

Optimism Isn't Always Healthy:

People are generally optimistic, believing they'll do better in the future than they've done in the past. This time around, I'll actually use that gym membership. I'm sticking to the diet this time. Now is the time to start saving for a down payment on a house. However, a new study reveals that this "optimism bias" can lead us to make immediate choices that go against our long-term goals.

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