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Researchers identify brain connections associated with ADHD in youth

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Researchers have discovered that symptoms of attention-deficit/hyperactivity disorder (ADHD) are tied to atypical interactions between the brain's frontal cortex and information processing centers deep in the brain. The researchers examined more than 10,000 functional brain images of youth with ADHD. http://dlvr.it/T47M07

How fear unfolds inside our brains

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The stress-induced mechanisms that cause our brain to produce feelings of fear in the absence of threats -- such as in PTSD -- have been mostly a mystery. Now, neurobiologists have identified the changes in brain biochemistry and mapped the neural circuitry that cause generalized fear experiences. http://dlvr.it/T44zb4

Interactions with dogs can increase brainwaves associated with stress relief and heightened concentration

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Spending quality time with dogs reduces stress and increases the power of brain waves associated with relaxation and concentration, according to a new study. http://dlvr.it/T44fQm

Blast-related concussions linked to higher Alzheimer's risk

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U.S. veterans of the wars in Afghanistan and Iraq who suffered mild traumatic brain injury from exposure to explosive blasts were found to have changes in cerebrospinal fluid proteins that are typically seen in people who develop Alzheimer's disease, according to researchers. http://dlvr.it/T43rTh

Brain waves travel in one direction when memories are made and the opposite when recalled

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These wide-ranging waves quickly link the specific constellations of brain regions that work in harmony to perform a task. http://dlvr.it/T43r2g

Living in violent neighborhoods affects children's brain development

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Living in neighborhoods with high levels of violence can affect children's development by changing the way that a part of the brain detects and responds to potential threats, potentially leading to poorer mental health and other negative outcomes, according to research published by the American Psychological Association. http://dlvr.it/T3z5Q3

Researchers identify gene involved in neuronal vulnerability in Alzheimer's disease

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Early stages of neurodegenerative disorders are characterized by the accumulation of proteins in discrete populations of brain cells and degeneration of these cells. For most diseases, this selective vulnerability pattern is unexplained, yet it could yield major insight into pathological mechanisms. http://dlvr.it/T3yfwm

For people who speak many languages, there's something special about their native tongue

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A study of polyglots found the brain's language network responds more strongly when hearing languages a speaker is more proficient in -- and much more weakly to the speaker's native language. http://dlvr.it/T3xf4T

Happiness can be learnt, but you have to work at it

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We can learn to be happy, but only get lasting benefits if we keep practicing, a new study has revealed. http://dlvr.it/T3xdvb

Shared blueprint in brain development across different functional areas

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Researchers have investigated brain development to understand how different areas of the brain become specialized in handling information such as vision, sound, touch and planning. http://dlvr.it/T3xRtL

Does iron accumulate in brain after concussions?

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People who have headaches after experiencing concussions may also be more likely to have higher levels of iron in areas of the brain, which is a sign of injury to brain cells, according to a preliminary study released today, March 5, 2024, that will be presented at the American Academy of Neurology's 76th Annual Meeting taking place April 13--18, 2024, in person in Denver and online. http://dlvr.it/T3w8Zw

Virtual reality exposure plus electric brain stimulation offers a promising treatment for PTSD

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Combining two treatments could be a promising option for people, especially military veterans, whose lives are negatively affected by post-traumatic stress disorder, finds a new study. In a clinical trial conducted among U.S. military veterans, participants who received brain stimulation with a low electrical current during sessions of virtual reality exposure reported a significant reduction in PTSD symptom severity. http://dlvr.it/T3v7Vv

A noninvasive treatment for 'chemo brain'

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A noninvasive treatment may help to counter 'chemo brain' impairment often seen in chemotherapy patients: Exposure to light and sound with a frequency of 40 hertz protected brain cells from chemotherapy-induced damage in mice, researchers found. http://dlvr.it/T3txh8

How the brain coordinates speaking and breathing

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Researchers discovered a brain circuit that drives vocalization and ensures that you talk only when you breathe out, and stop talking when you breathe in. This circuit is under control of a brainstem region called the pre-B tzinger complex. http://dlvr.it/T3q50W

New microscopy tech answers fundamental questions

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A new tool captures data from an unprecedented 1 million neurons simultaneously, painting a much fuller picture of brain dynamics. http://dlvr.it/T3mm0L

Opening a window on the brain

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Researchers have introduced a new method for in vivo brain imaging, enabling large-scale and long-term observation of neuronal structures and activities in awake mice. This method is called the 'nanosheet incorporated into light-curable resin' (NIRE) method, and it uses fluoropolymer nanosheets covered with light-curable resin to create larger cranial windows. http://dlvr.it/T3jxHz

More than just neurons: A new model for studying human brain inflammation

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Scientists have created a novel organoid model of the human brain that contains astrocytes -- which have been excluded from other models thus far -- to study inflammation in diseases like Alzheimer's. Using this model, they have already found a potentially druggable target to disrupt inflammation in the brain. http://dlvr.it/T3jx8h

Link between adversity, psychiatric and cognitive decline

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Scientists have been examining the relationship between childhood adversity, and psychiatric decline as well as adult adversity and psychiatric and cognitive decline. http://dlvr.it/T3csSn

Molecular clusters on glial cells show they are more than our brain's 'glue'

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Researchers report that a single glial cell uses different molecules to communicate with different neurons. Careful clustering of these molecules ensures that the glial cell can conduct a distinct 'conversation' with each neuron. Through these molecular facilitators, glia can influence how neurons respond to environmental cues like temperature and smell. http://dlvr.it/T3cfGS