Neuroscience

Volume of grey matter may predict degree of altruism

What makes a person altruistic? Philosophers throughout the ages often pondered the question but failed to get concrete answers. New research from the University of Zurich in Switzerland shows that the answer may lie in our ...

Diseases, Conditions, Syndromes

SARS-CoV-2 can infect dopamine neurons causing senescence

A new study reported that SARS-CoV-2, the virus that causes COVID, can infect dopamine neurons in the brain and trigger senescence—when a cell loses the ability to grow and divide. The researchers from Weill Cornell Medicine, ...

Neuroscience

'Second brain' neurons keep colon moving

Millions of neurons in the gastrointestinal tract coordinate their activity to generate the muscle contractions that propel waste through the last leg of the digestive system, according to a study of isolated mouse colons ...

Neuroscience

Sniffing out the brain's smelling power

Since their discovery over 100 years ago, neurons called tufted cells, in the brain's olfactory bulb, have been difficult to study. The close proximity between tufted cells and other neurons called mitral cells has restricted ...

Genetics

How epigenetics influence memory formation

When we form a new memory, the brain undergoes physical and functional changes known collectively as a "memory trace." A memory trace represents the specific patterns of activity and structural modifications of neurons that ...

Neuroscience

Distinct brain cells recognize novel sights

No matter what novel objects we come to behold, our brains effortlessly take us from an initial "What's that?" to "Oh, that old thing" after a few casual encounters. In research that helps shed light on the malleability of ...

Neuroscience

Decoding sound's source: Researchers unravel part of the mystery

As Baby Boomers age, many experience difficulty in hearing and understanding conversations in noisy environments such as restaurants. People who are hearing-impaired and who wear hearing aids or cochlear implants are even ...

Medical research

Using human brain cells to make mice smarter

Glial cells – a family of cells found in the human central nervous system and, until recently, considered mere "housekeepers" – now appear to be essential to the unique complexity of the human brain. Scientists reached ...

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