Saturday, November 24, 2018



Scientists discover a tiny hidden region in the brain that is UNIQUE to humans and could help cure Parkinson's and motor neurone disease

  • For thirty years, researchers suspected this region existed but could not see it
  • Scientists found the region thanks to better staining and imaging techniques
  • The discovery of the region may help researchers explore cures for diseases 
Scientists have found a tiny new region of the brain that only humans have - and they believe it could be what makes our species unique.
Researchers say the incredible find could help find a treatment for Parkinson's and motor neurone disease.
For thirty years scientists - who have likened the discovery to finding a new star - suspected this region existed but were unable to see it.

Scientists have found a new region of the brain that only humans have - and they believe it could be what makes our species unique. The new region is called Endorestiform Nucleus
Scientists have found a new region of the brain that only humans have - and they believe it could be what makes our species unique. The new region is called Endorestiform Nucleus
Professor George Paxinos from Neuroscience Research Australia (NeuRA) found the hidden region.
He was able to find the region, called the Endorestiform Nucleus, thanks to better staining and imaging techniques.
'The region is intriguing because it seems to be absent in the rhesus monkey and other animals that we have studied,' said Professor Paxinos.
'This region could be what makes humans unique besides our larger brain size', he said.
The region is found near the brain-spinal cord junction.
This is an area that integrates sensory and motor information to refine our posture, balance and fine motor movements.
For thirty years scientists - who have likened the discovery to finding a new star - suspected this region existed but were unable to see it
For thirty years scientists - who have likened the discovery to finding a new star - suspected this region existed but were unable to see it
Professor George Paxinos from Neuroscience Research Australia (NeuRA) found the hidden region. He was able to find the region, called the Endorestiform Nucleus, thanks to better staining and imaging techniques
Professor George Paxinos from Neuroscience Research Australia (NeuRA) found the hidden region. He was able to find the region, called the Endorestiform Nucleus, thanks to better staining and imaging techniques
'I can only guess as to its function, but given the part of the brain where it has been found, it might be involved in fine motor control,' said Professor Paxinos.
The discovery of the region may help researchers explore cures for diseases including Parkinson's disease and motor neurone disease.
Parkinson’s disease affects one in 500 people, and around 127,000 people in the UK live with the condition. 
It causes muscle stiffness, slowness of movement, tremors, sleep disturbance, chronic fatigue, an impaired quality of life and can lead to severe disability.
Motor neurone disease is when specialist nerve cells in the brain and spinal cord called motor neurones stop working properly 
Neuroscientists researching neurological or psychiatric diseases already use Professor Paxinos' maps to guide their work.
The discovery of the region may help researchers explore cures for diseases including Parkinson's disease and motor neurone disease
The discovery of the region may help researchers explore cures for diseases including Parkinson's disease and motor neurone disease
His brain atlases are heralded as the most accurate for the identification of brain structures and are also used in neurosurgery.
'Professor Paxinos' atlases showing detailed morphology and connections of the human brain and spinal cord, provide a critical framework for researchers to test hypotheses from synaptic function to treatments for diseases of the brain,' said Professor Peter Schofield, CEO at NeuRA.
Professor Paxinos is the author of the most cited publication in neuroscience and another 52 books of highly detailed maps of the brain.
The maps chart the course for neurosurgery and neuroscience research, enabling exploration, discovery and the development of treatments for diseases and disorders of the brain.
His new findings are revealed in his latest book, Human Brainstem: Cytoarchitecture, Chemoarchitecture, Myeloarchitecture.

WHAT IS PARKINSON'S? THE INCURABLE DISEASE THAT STRUCK BOXER MUHAMMAD ALI

Parkinson’s disease affects one in 500 people, and around 127,000 people in the UK live with the condition.
Figures also suggest one million Americans also suffer.
It causes muscle stiffness, slowness of movement, tremors, sleep disturbance, chronic fatigue, an impaired quality of life and can lead to severe disability.
It is a progressive neurological condition that destroys cells in the part of the brain that controls movement.
Sufferers are known to have diminished supplies of dopamine because nerve cells that make it have died.
There is currently no cure and no way of stopping the progression of the disease, but hundreds of scientific trials are underway to try and change that.  
The disease claimed the life of boxing legend Muhammad Ali in 2016.
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Friday, November 16, 2018



People who walk backwards perform better in a memory test than those who stand still or walk forward, a study has found.
Researchers asked 114 volunteers to watch a video in which a woman had her bag stolen and then answer a questionnaire about what they could recall.
After watching the video, participants were split into groups - one was told to walk forwards or backwards 30 feet (10m) while a control group stood in one place.
They were then asked twenty questions about the events in the video and it was found that the backward-walking group got two more answers correct on average than the forward-walkers and the non-walkers.

People who walk backwards perform better in a memory test than those who stand still or walk forward, a study has found. Researchers asked 114 volunteers to watch a video in which a woman had her bag stolen and answer a questionnaire about what they could recall (stock)
People who walk backwards perform better in a memory test than those who stand still or walk forward, a study has found. Researchers asked 114 volunteers to watch a video in which a woman had her bag stolen and answer a questionnaire about what they could recall (stock)
Experts from the University of Roehampton discovered a similar effect in five variations of the experiment. 
One of them involved a similar procedure but tested how many words the volunteers could remember from a list.
In others, participants simply imagined moving forwards or backwards, or watched a video filmed on a train, which created the impression of moving forwards or backwards.
In all scenarios, the backwards group or those who imagined walking backwards got the most answers right.
The team deemed this as a statistically significant experiment and an indication that a link between the concepts of 'time' and 'space' is essential to the way our minds form memories.
'It's a partial vindication of this idea that time is really expressed via space,' says Aksentijevic Aksentijevic, who led the study.
After watching the video, participants were split into groups - one was told to walk forwards or backwards 30 feet (10m) while a control group stood in one place. People who walked backwards remembered more (stock image)
After watching the video, participants were split into groups - one was told to walk forwards or backwards 30 feet (10m) while a control group stood in one place. People who walked backwards remembered more (stock image)
It is still not clear why motion, real or imagined, should improve our access to memories but Dr Aksentijevic hopes further research will shed light on as well as how to use it to our advantage.
'I am sure that some of this work could be useful in helping people remember things, but how is a question for more research,' he said.
Richard Allen at the University of Leeds, UK, says the results are interesting, and might offer ways to improve memory function. 
'However, I think we need to see the results clearly replicated by other research groups before we can start to be confident about this effect and its interpretation,' Dr Allen said.

WHAT IS AN EEG AND HOW DOES IT WORK?

An electroencephalogram (EEG) is a recording of brain activity which was originally developed for clinical use.
During the test, small sensors are attached to the scalp to pick up the electrical signals produced when brain cells send messages to each other. 
In the medical field, EEGs are typically carried out by a highly trained specialist known as a clinical neurophysiologist.
These signals are recorded by a machine and are analysed by a medical professional to determine whether they're unusual.
An EEG can be used to help diagnose and monitor a number of conditions that affect the brain.
It may help identify the cause of certain symptoms, such as seizures or memory problems.
More recently, technology companies have used the technique to create brain-computer interfaces, sometimes referred to as 'mind-reading' devices.
This has led to the creation and design of a number of futuristic sounding gadgets.
These have ranged from a machine that can decipher words from brainwaves without them being spoken to a headband design that would let computer users open apps using the power of thought...
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