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image: Chimp Brains Don’t Shrink with Age

Chimp Brains Don’t Shrink with Age

By Tia Ghose | July 25, 2011

Unlike human brains, chimpanzee brains don’t get smaller as they age, suggesting that pronounced neurological decline is a uniquely human byproduct of our oversized brains and extreme longevity.

33 Comments

image: Neanderthal DNA in Modern Humans

Neanderthal DNA in Modern Humans

By Jef Akst | July 19, 2011

Non-African people carry remnants of the Neanderthal X chromosome, suggesting interbreeding with early human ancestors.

51 Comments

image: Learning Addiction

Learning Addiction

By Cristina Luiggi | July 13, 2011

Eleanor Simpson, a neuroscientist at Columbia University Medical Center, discusses a recent Nature paper that probes dopamine's role in helping animals make positive associations to stimuli that herald pleasurable outcomes (such as the handing out of food).

9 Comments

image: Circadian Signs of Aging

Circadian Signs of Aging

By Kerry Grens | July 13, 2011

The neural nexus of the circadian clock shows signs of functional decline as mice age, providing clues as to why sleep patterns tend to change as people grow older.

27 Comments

image: Cough Syrup Treats MS?

Cough Syrup Treats MS?

By Bob Grant | July 11, 2011

Researchers find that an ingredient in common cough medicine improves multiple sclerosis symptoms in animal models.

12 Comments

image: Summer Science, British Style

Summer Science, British Style

By Jef Akst and Richard P. Grant | July 8, 2011

The Royal Society's annual science extravaganza packs some interesting stuff into 5 days of love and research.

3 Comments

image: Air Pollution Stunts Cognition

Air Pollution Stunts Cognition

By Tia Ghose | July 6, 2011

Particulates in the air can cause impaired learning and depression in mice.

21 Comments

Brain Cells Self-Amplify

By Jef Akst | July 5, 2011

A certain type of neural precursor does it all—replaces itself, differentiates into specialized brain cells, and multiplies into more stem-cell-like cells.

0 Comments

image: Pain-Free Love

Pain-Free Love

By Jef Akst | July 1, 2011

Love can buffer people from pain by invoking feelings of safety and reassurance.

0 Comments

image: Repainting Ancient Birds

Repainting Ancient Birds

By Megan Scudellari | July 1, 2011

Using synchrotron rapid scanning X-ray fluorescence to map the distribution of trace metals in avian fossils over 120 million-year-old, researchers reconstruct the pigment patterns of their feathers—revealing some of the extinct birds' long-lost colors.

0 Comments

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