Kayıtlar

Rats have an imagination, new research suggests

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Researchers have developed a novel system to probe a rat's thoughts, finding that animals can control their brain activity to imagine remote locations.   http://dlvr.it/SyLF5R

fMRI study finds correlated shifts in brain connectivity associated with overthinking in adolescents

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A new study substantiates previous groundbreaking research that rumination (overthinking) can be reduced through an intervention called Rumination-focused Cognitive Behavioral Therapy (RF-CBT). In addition, the use of fMRI technology allowed researchers to observe correlated shifts in the brain connectivity associated with overthinking. http://dlvr.it/SyLDpn

Marijuana use may damage brain immune cells vital to adolescent development, study suggests

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In a mouse study designed to explore the impact of marijuana's major psychoactive compound, THC, on teenage brains, researchers say they found changes to the structure of microglia, which are specialized brain immune cells, that may worsen a genetic predisposition to schizophrenia. http://dlvr.it/SyLDbC

One sleepless night can rapidly reverse depression for several days

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Most people who have pulled an all-nighter are all too familiar with that 'tired and wired' feeling. Although the body is physically exhausted, the brain feels slap-happy, loopy and almost giddy. Now, neurobiologists have uncovered what produces this punch-drunk effect. In a new study, researchers induced mild, acute sleep deprivation in mice and then examined their behaviors and brain activity. Not only did dopamine release increase during the acute sleep loss period, synaptic plasticity also was enhanced -- literally rewiring the brain to maintain the bubbly mood for the next few days. http://dlvr.it/SyKD0d

DNA organization influences the growth of deadly brain tumors in response to neuronal signals

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A pioneering study has unveiled that the 3D organization of DNA can influence the progression of the aggressive brain tumor known as glioblastoma. Having identified the factors that glioblastoma uses to respond to neurons by growing and spreading, this discovery paves the way for further research into new treatments for brain tumors. http://dlvr.it/SyJZDv

What happens when we pass out? Researchers ID new brain and heart connections

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Researchers have for the first time identified the genetic pathway between the heart and brain tied to fainting. They found that vagal sensory neurons trigger fainting, laying a foundation for addressing fainting-related disorders. http://dlvr.it/SyGZ7C

High metabolism is an early sign of Alzheimer's disease

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An early phase in the process of developing Alzheimer's disease is a metabolic increase in a part of the brain called the hippocampus, report researchers. http://dlvr.it/SyGMVd

The brain may learn about the world the same way some computational models do

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New studies support the idea that the brain uses a process similar to a machine-learning approach known as 'self-supervised learning.' This type of machine learning allows computational models to learn about visual scenes based solely on the similarities and differences between them, with no labels or other information. http://dlvr.it/SyCK3c

Lab unlocks keys to alcohol withdrawal headache

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Researchers have discovered mechanisms by which specific cells are activated in alcohol withdrawal-induced headache. The research may benefit further studies of various substance use disorder mechanisms including withdrawal. It may be possible to develop a small-molecule drug therapy to inhibit interactions, resulting in fewer pain signals during alcohol withdrawal. http://dlvr.it/SyBvLX

Want to achieve your goals? Get angry

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While often perceived as a negative emotion, anger can also be a powerful motivator for people to achieve challenging goals in their lives, according to new research. http://dlvr.it/Sy8mj1

Hidden way for us to feel touch

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Researchers have discovered a hidden mechanism within hair follicles that allow us to feel touch. http://dlvr.it/Sy6tZq

An unexpected link between 2 schizophrenia risk proteins

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The discovery of a physical interaction between two proteins in brain cells that can be traced in mice to control of movement, anxiety and memory could one day open the door to development of new schizophrenia treatment strategies, researchers say. http://dlvr.it/Sy2bp0

Perception--but not expectation--of reward is altered in people with cocaine addiction

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Researchers report that cocaine addiction disrupts the dopamine neurons that govern how we perceive and learn from rewards. Though people with cocaine addiction have similar expectations of rewards compared to controls, their dopamine neurons send out much weaker signals when these rewards are actually received. This dysregulation could make it more difficult for people with cocaine addiction to learn from their experiences and change addictive behavior. http://dlvr.it/Sxzfyz

Two regions of the brain critical to integrating semantic information while reading

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Two different regions of the brain are critical to integrating semantic information while reading, which could shed more light on why people with aphasia have difficulty with semantics, according to new research. http://dlvr.it/SxxTxY

Researchers use pioneering new method to unlock brain's noradrenaline system

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An international team of researchers has provided valuable insights into the brain's noradrenaline (NA) system, which has been a longtime target for medications to treat attention-deficit/hyperactivity disorder, depression, and anxiety. Equally important beyond the findings is the groundbreaking methodology that the researchers developed to record real-time chemical activity from standard clinical electrodes which are routinely implanted for epilepsy monitoring. http://dlvr.it/SxrtX5

Pupil response may shed light on who responds best to transcranial magnetic stimulation for depression

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New findings suggest that measuring changes in how pupils react to light could help predict recovery from depression and personalize transcranial magnetic stimulation (TMS) treatment of major depressive disorder. http://dlvr.it/SxpQgc

Researchers confirm postpartum depression heritability, home in on treatment mechanism

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Researchers have conducted a large-scale meta-analyses of genome-wide association studies (GWAS) to investigate the genetic architecture of PPD. http://dlvr.it/SxpF1j

Study finds men's antidepressant use did not negatively impact IVF success

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In vitro fertilization (IVF) is a time-intensive and often stress-inducing fertility procedure. Yet how does that stress impact its success? Investigators have now assessed the effects of anxiety and depression in men on fertility and IVF outcomes. http://dlvr.it/Sxp2Fn

How brain inflammation in children may cause neurological disorders

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Severe inflammation in early childhood is a clinically known risk factor for developing autism and schizophrenia. Now, scientists have discovered that inflammation alters the development of vulnerable brain cells, and this could have mechanistic links to neurodevelopmental disorders. http://dlvr.it/Sxmg3q

Soft optical fibers block pain while moving and stretching with the body

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New soft, implantable fibers can deliver light to major nerves through the body. They are an experimental tool for scientists to explore the causes and potential treatments for peripheral nerve disorders in animal models. http://dlvr.it/SxhSp4