Brain

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News • Neural activity

Movie research results: Our brains are bad at multitasking

The brain works most efficiently when it can focus on a single task for a longer period of time. Previous research shows that multitasking, which means performing several tasks at the same time, reduces productivity by as much as 40%. Now a group of researchers specialising in brain imaging has found that changing tasks too frequently interferes with brain activity. This may explain why the end…

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News • Blood flow control

"Switch" in brain’s capillary network monitors activity

All it takes is the flip of a protein “switch” within the tiny wire-like capillaries of the brain to increase the blood flow that ensures optimal brain function. New research has uncovered that capillaries have the capacity to both sense brain activity and generate an electrical vasodilatory signal to evoke blood flow and direct nutrients to nourish hard-working neurons.

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News • brain research

Progress Towards a Circuit Diagram of the Brain

Precise knowledge of the connections in the brain – the links between all the nerve cells – is a prerequisite for better understanding this most complex of organs. Researchers from Heidelberg University have now developed a new algorithm – a computational procedure – that can extract this connectivity pattern with far greater precision than previously possible from microscopic images of…

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News • Lab Study

A protein called PERK - Treating progressive supranuclear palsy

The brain disease “progressive supranuclear palsy” (PSP) is currently incurable and its symptoms can only be eased to a very limited degree. PSP impairs eye movements, locomotion, balance control, and speech. Scientists at the German Center for Neurodegenerative Diseases (DZNE) and the Technical University of Munich (TUM) have now discovered a molecular mechanism that may help in the search…

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News • Stress Research

Chronic stress neurons discovered

A novel population of neurons that are only activated following chronic stress is identified. Today, stress is part of everyday life. However, when stress is chronic it can lead to distressing illnesses such as depression and anxiety disorders. In their latest study, scientists at the Max Planck Institute of Psychiatry in Munich have identified a population of neurons in the hypothalamus that…

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New discovery may improve recovery after stroke

Faster and better recovery after stroke may be the result of a newly discovered treatment strategy that created new nerve synapses in the brain—a key factor for learning. A study at Sahlgrenska Academy showed improved ability to use the affected paw in mice that received the treatment.

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Article • Computer intelligence

Cognition-guided surgery – a rocky road

Surgery will change – with all the challenges that developments such as Big Data create there are no two ways about it. However, how deep those changes run remains to be seen. In a rather young field of research, scientists look at the ways all components used during surgery can be interlinked. Professor Beat Müller, co-initiator of the project ‘Cognition-Guided Surgery’, explains results…

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News • Pediatrics

Technology reveals fetal brain activity

NIBIB-funded researchers at the University of Washington have pioneered an approach to image functional activity in the brains of individual fetuses, allowing a better look at how functional networks within the brain develop. The work addresses a common problem of functional MRI; if the subject moves during the scanning, the images get distorted.

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News • Neurodegenerative diseases

Brain cell ‘executioner’ identified

Despite their different triggers, the same molecular chain of events appears to be responsible for brain cell death from strokes, injuries and even such neurodegenerative diseases as Alzheimer's. Now, researchers at Johns Hopkins say they have pinpointed the protein at the end of that chain of events, one that delivers the fatal strike by carving up a cell's DNA. The find, they say, potentially…

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News • For tissue engineering

Technique generates human neural stem cells

Tufts University researchers have discovered a new technique for generating rapidly-differentiating human neural stem cells for use in a variety of tissue engineering applications, including a three-dimensional model of the human brain, according to a paper published in Stem Cell Reports. The work could pave the way for experiments that engineer other innervated tissues, such as the skin and…

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News • Neurology

How the brain improves motor control

Adaptation in reaching - gradual improvement of motor control in response to a perturbation - is a central issue in motor neuroscience.However, even the cortical origin of errors that drive adaptation has remained elusive. In a new paper Inoue, Uchimura and Kitazawa have shown that error signals encoded by motor cortical neurons drive adaptation in reaching.

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News • Freaky new role

Immune system controls social interaction

In a startling discovery that raises fundamental questions about human behavior, researchers at the University of Virginia School of Medicine have determined that the immune system directly affects – and even controls – creatures’ social behavior, such as their desire to interact with others. So could immune system problems contribute to an inability to have normal social interactions? The…

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News • Map

How the brain is organized

The age of exploration has long passed, but there is at least one area still largely uncharted: the human brain. Now, a detailed new map by researchers at Washington University School of Medicine in St. Louis lays out the landscape of the cerebral cortex – the outermost layer of the brain and the dominant structure involved in sensory perception and attention, as well as distinctly human…

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News • Neurology

The aging brain's memory functions

A European study led by Umeå University Professor Lars Nyberg, has shown that the dopamine D2 receptor is linked to the long-term episodic memory, which function often reduces with age and due to dementia. This new insight can contribute to the understanding of why some but not others are affected by memory impairment.

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