-
A Salvo in the Calorie War
The calorie war is heating up. It’s actually been simmering for some time, sparked by an alarming obesity rate among young Americans and related spikes in diabetes and other health problems. Nobody really disputes this sorry trend anymore, but there is a lot of disagreement over what to do about it. Public health advocates are clamoring for everything from warning labels on junk food to aggressive television marketing campaigns, even for outright prohibitions. Just last week, the Obama administration entered the fray, calling for a total ban on candy and soda in the nation’s schools. Some see the past tobacco war as the proper model for this public health campaign.
-
Bilingual Babies: The Roots of Bilingualism in Newborns
It may not be obvious, but hearing two languages regularly during pregnancy puts infants on the road to bilingualism by birth. According to new findings in Psychological Science, a journal of the Association for Psychological Science, infants born to bilingual mothers (who spoke both languages regularly during pregnancy) exhibit different language preferences than infants born to mothers speaking only one language. Psychological scientists Krista Byers-Heinlein and Janet F. Werker from the University of British Columbia along with Tracey Burns of the Organization for Economic Co-operation and Development in France wanted to investigate language preference and discrimination in newborns.
-
The Science of Recovery
Over the past few years, I have written many short essays on new findings in psychological science. Most have these have appeared in this blog, "We're Only Human," but many others have been published in Newsweek.com and, more recently, in the "Full Frontal Psychology" blog at True/Slant. At this point, I have written enough that I am beginning to identify clusters of essays all focusing on a particular topic, and I thought it might be useful to organize these topical essays in a way that's more useful to readers. One such topic is the science of recovery.
-
Feeling Blue? You’ll Shun the New
A sick or sad child might cling to mom’s leg. But that same child – fed, rested and generally content – will happily toddle off to explore every nook and cranny of the known world. Or: You’re chipper and you decide to check out the new restaurant across town. You’re blue and you turn to comfort foods. If you’ve seen or experienced these scenarios, you may not be surprised about the latest finding from an international team of social and cognitive psychologists: A negative mood, it turns out, imparts a warm glow to the familiar. Happiness, on the other hand, makes novelty attractive (and can instead give the familiar a “blah” cast).
-
Study Reveals Potential Evolutionary Role for Same-Sex Attraction
Male homosexuality doesn’t make complete sense from an evolutionary point of view. It appears that the trait is heritable, but because homosexual men are much less likely to produce offspring than heterosexual men, shouldn’t the genes for this trait have been extinguished long ago? What value could this sexual orientation have, that it has persisted for eons even without any discernible reproductive advantage? One possible explanation is what evolutionary psychologists call the “kin selection hypothesis.” What that means is that homosexuality may convey an indirect benefit by enhancing the survival prospects of close relatives.
-
Pay it Forward: Elevation Leads to Altruistic Behavior
Seeing someone perform a virtuous deed (especially if they are helping another person), makes us feel good, often eliciting a warm, fuzzy feeling in our chest. This positive, uplifting emotion, known as “elevation,” might make us feel great, but is it enough to get us to go out and perform good acts ourselves? According to new findings reported in Psychological Science, a journal of the Association for Psychological Science, the answer may be yes. Psychological scientists Simone Schnall from the University of Cambridge, Jean Roper from the University of Plymouth, and Daniel M.T.
