Weekly Neuroscience Update

Parkin-expressing cells (red) are undergoing programmed cell death. Credit Dr. Emilie Hollville and Professor Seamus Martin, Trinity College Dublin.

Parkin-expressing cells (red) are undergoing programmed cell death. Credit Dr. Emilie Hollville and Professor Seamus Martin, Trinity College Dublin.

Scientists at Trinity College Dublin have made an important breakthrough in our understanding of Parkin – a protein that regulates the repair and replacement of nerve cells within the brain. This breakthrough generates a new perspective on how nerve cells die in Parkinson’s disease.

A new study, which may have implications for approaches to education, finds that brain mechanisms engaged when people allow their minds to rest and reflect on things they’ve learned before may boost later learning.

A study in which more than 43,000 children were evaluated for head trauma offers an unprecedented picture of how children most frequently suffer head injuries. For teens, top causes are assaults, sports, car crashes; for younger children, falls lead the list.The findings also indicate how often such incidents result in significant brain injuries, computerized tomography (CT) scans to assess head injuries, and neurosurgery to treat them.

Neighborhoods that motivate walking can stave off cognitive decline in older adults.

People who are depressed often complain that they find it difficult to make decisions. A new study provides an explanation. Researchers tested 29 patients diagnosed with major depression and 27 healthy controls and they found that the people with depression had an impaired ability to go with their gut instincts, or what we might call intuition.

Learning a new language changes your brain network both structurally and functionally, according to Penn State researchers.

Finally this week, being shown pictures of others being loved and cared for reduces the brain’s response to threat, new research from the University of Exeter has found.

 

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