Mental abilities decline with age, but drops not as steep as previously noted

A new look at tests of mental aging reveals a good news-bad news situation. The bad news is all mental abilities appear to decline with age, to varying degrees. The good news is the drops are not as steep as some research showed, according to a study published by the American Psychological Association.

Perception of emotion is culture-specific

Want to know how a Japanese person is feeling? Pay attention to the tone of his voice, not his face. That’s what other Japanese people would do, anyway. A new study examines how Dutch and Japanese people assess others’ emotions and finds that Dutch people pay attention to the facial expression more than Japanese people do.

Children and adults see the world differently

Unlike adults, children are able to keep information from their senses separate and may therefore perceive the visual world differently, according to research published today.

Not all interneurons are created equally

A type of neuron that, when malfunctioning, has been tied to epilepsy, autism and schizophrenia is much more complex than previously thought, researchers at MIT’s Picower Institute for Learning and Memory report in the Sept. 9 issue of Neuron.

Inflicting greater harm judged to be less harmful

Joseph Stalin once claimed that a single death was a tragedy, but a million deaths was a statistic. New research from the Kellogg School of Management at Northwestern University validates this sentiment, confirming large-scale tragedies don’t connect with people emotionally in the same way smaller tragedies do.

Factors linked to cognitive deficits in Type 2 diabetes

Older adults with diabetes who have high blood pressure, walk slowly or lose their balance, or believe they’re in bad health, are significantly more likely to have weaker memory and slower, more rigid cognitive processing than those without these problems, according to a new study published by the American Psychological Association.