Tag: <span>Brain circuit</span>

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Unique brain circuit is linked to body mass index
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Unique brain circuit is linked to body mass index

MAY 16, 2024 by Northwestern University Credit: Unsplash/CC0 Public Domain Why can some people easily stop eating when they are full and others can’t, which can lead to obesity? A Northwestern Medicine study has found one reason may be a newly discovered structural connection between two regions in the brain that appears to be involved...

Investigators uncover new brain circuit for epilepsy
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Investigators uncover new brain circuit for epilepsy

by Brigham and Women’s Hospital Credit: Pixabay/CC0 Public Domain Focal epilepsy affects over 30 million patients worldwide and is commonly caused by brain lesions, such as stroke. However, it is unclear why some lesion locations cause epilepsy while others do not. A new study by investigators from the Brigham and Women’s Hospital, a founding member of...

Identifying the brain circuit responsible for locomotor activation and avoidance behavior
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Identifying the brain circuit responsible for locomotor activation and avoidance behavior

by Anna Hein, Max Planck Society CRH neurons in the IPACL region produce a red fluorescent protein that enables visualization. If CRH neurons are connected to the substantia nigra in the midbrain, retrograde labeling additionally stains them green. Credit: Simon Chang In a largely neglected brain region, scientists identified neurons that produce the stress hormone...

Human cocaine and heroin addiction tied to impairments in specific brain circuit initially implicated in animals
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Human cocaine and heroin addiction tied to impairments in specific brain circuit initially implicated in animals

by The Mount Sinai Hospital Structural connections with the prefrontal cortex modeled from targeted nuclei in the subcortex (blue: habenula, yellow: anterior thalamus, red: ventral tegmental area) using diffusion MRI tractography. Microstructural properties of the habenula tract were uniquely reduced in individuals with cocaine or heroin use disorder. Results highlight the potential specificity of distinct...

Magnetic Activation of Specific Brain Circuits
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Magnetic Activation of Specific Brain Circuits

JULY 29TH, 2022 CONN HASTINGS  NEUROLOGY, NEUROSURGERY Scientists at Rice University developed a system to wirelessly and rapidly activate specific brain circuits using magnetic fields. The technology has been developed in fruit flies, a common experimental animal, but the researchers hope that it could help in understanding the brain and to develop new treatments for neurological...

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Researchers Identify a Brain Circuit for Addiction Remission

In the United States, substance use disorders are a leading cause of death among young people. Treatments such as deep brain stimulation hold promise for helping people overcome addiction, but many questions remain about what brain areas should be targeted.  Researchers are gaining new insights from patients no longer addicted to nicotine after experiencing a brain lesion,...

A brain circuit in the thalamus helps us hold information in mind
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A brain circuit in the thalamus helps us hold information in mind

by Anne Trafton, Massachusetts Institute of Technology MIT researchers have found that neurons of the anteroventral thalamus (labeled green) play a critical role in spatial working memory. Neurons of the anterodorsal thalamus are labeled in red. Credit: Dheeraj Roy and Ying Zhang As people age, their working memory often declines, making it more difficult to...

Ready, set…GO! Scientists discover a brain circuit that triggers the execution of planned movement
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Ready, set…GO! Scientists discover a brain circuit that triggers the execution of planned movement

by Max Planck Florida Institute for Neuroscience While waiting at a red light, the brain has planned the precise movements needed to make a smooth turn. However, these plans turn into action only when the light turns green. Scientists from the Max Planck Florida Institute for Neuroscience, HHMI’s Janelia Research Campus, the Allen Institute for...

A brain circuit linking pain and breathing may offer a path to prevent opioid deaths
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A brain circuit linking pain and breathing may offer a path to prevent opioid deaths

December 22, 2021 6:00 AM ET JON HAMILTON Shell neurons (green) project to the breathing center and core neurons (red) project to the pain/emotion center. Brain scientists have found the two are linked, shedding new light on opioid overdoses Salk Institute When people feel pain, they tend to breathe faster. When they take an opioid...

Newly discovered brain circuit in motor learning
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Newly discovered brain circuit in motor learning

by Champalimaud Centre for the Unknown  2-photon image of a striatal neuron (SPN) and the recording pipette. Credit: Nicolas Morgenstern How does the brain acquire new motor skills? A new study published today (February 9th) in the scientific journal Science Advances sheds light on a newly discovered brain circuit that may endow us with this remarkable ability....

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