Related topics: brain

Fluctuating environment may have driven human evolution

A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers University.

Chimpanzee 'mini-brains' hint at secrets of human evolution

At some point during human evolution, a handful of genetic changes triggered a dramatic threefold expansion of the brain's neocortex, the wrinkly outermost layer of brain tissue responsible for everything from language to ...

Humans don't use as much brainpower as we like to think

For years, scientists assumed that humans devote a larger share of their daily calories to their brains than other animals. Although the human brain makes up only 2 percent of body weight, it consumes more than 25 percent ...

Cognitive scientist calls for integration in language sciences

In a new opinion piece in a major publication, Morten Christiansen, professor of psychology, describes how the study of language has fragmented into many highly-specialized areas of study that tend not to talk to each other. ...

In brain evolution, size matters—most of the time

Which came first, overall bigger brains or larger brain regions that control specialized behaviors? Neuroscientists have debated this question for decades, but a new Cornell University study settles the score.

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