Neuroscience

Lost memories can be restored, which offers some hope for patients in the early stages of Alzheimer's disease.

The belief has been that memories are stored at the synapses -- the connections between brain cells, or neurons -- which are destroyed by Alzheimer's disease. The new study provides evidence contradicting the idea that long-term memory is stored at synapses.


It's no secret that some people are better at navigating than others, but it has been unclear why.

In order to successfully navigate to a destination, you need to know which direction you are currently facing and which direction to travel in. For example, 'I am facing north and want to head east'. It is already known that mammals have brain cells that signal the direction that they are currently facing, a discovery that formed part of the 2014 Nobel Prize in Physiology or Medicine to Professor John O'Keefe.


Young children with type 1 diabetes have slower brain growth compared to children without diabetes, finds a new study in Diabetes.

The authors suggest that continued exposure to hyperglycemia, or high blood sugars, may be detrimental to the developing brain. They studied brain development in children ages four to nine years old with
type 1 diabetes
using structural magnetic resonance imaging (MRI) and cognitive tests to determine if abnormal blood glucose levels impact brain structure and function at a young age. Children with
type 1 diabetes
also underwent blood sugar monitoring using continuous glucose sensors. 


Migraine headaches have been linked to double the risk of a nervous system condition that causes facial paralysis, called Bell's palsy, according to a new study published in the December 17, 2014, online issue of Neurology

Bell's palsy affects between 11 and 40 per 100,000 people each year. Most people with Bell's palsy recover completely.  Headaches are the most common disorder of the nervous system, affecting about 12 percent of the US population. 



Your brain is still you. Andrew Mason, CC BY

By Walter Sinnott-Armstrong, Duke University

Imagine that Brian promises to drive you to the airport but never shows up, and you miss your flight. When you confront Brian, he tells you that he remembered his promise but decided to watch a movie instead. Would you be angry? You betcha!


All the better for hearing you with. Boris Roessler/EPA

By Victoria Ratcliffe, University of Sussex and David Reby, University of Sussex

Sometimes it may seem like your dog doesn’t want to listen.

But in our study, however, we’ve found that he may understand more than he lets on.

There are too many factors and combinations of genetic traits to have any definitive cause of autism today, along with a wide range of diagnoses that add to the pool, but a new analysis has found that the autopsied brains of people who had autism share a pattern of ramped-up immune responses.


A study has found that elite Kenyan athletes have greater brain oxygenation during periods of maximum physical effort, which contributes to their success in long-distance races.

Dr. Jordan Santos-Concejero, of the Department of Physical Education and Sport at the University of the Basque Country carried out the research to analyze the response of cerebral oxygenation at maximum and progressive rhythms amongst elite Kenyan runners from the Kalenjin tribe. 
The chemical messenger dopamine, colloquially called the 'happiness hormone', is important outside social psychology articles on Valentine's Day also; it has been linked to motivation and motor skills and may help neurons with difficult cognitive tasks.  Researchers have found how dopamine influences brain cells while processing rules.

Your memory can play tricks on you. Shutterstock

By Catherine Loveday, University of Westminster