Brain

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brain : the portion of the vertebrate central nervous system enclosed in the skull and continuous with the spinal cord through the foramen magnum that is composed of neurons and supporting and nutritive structures (as glia) and that integrates sensory information from inside and outside the body in controlling autonomic function (as heartbeat and respiration), in coordinating and directing correlated motor responses, and in the process of learning — Webster

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Brain The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. The brain is located in the head, usually close to the sensory organs for senses such as vision. The brain is the most complex organ in a vertebrate’s body. In a human, the cerebral cortex contains approximately 15–33 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells. — Wikipedia

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Scientific American: Mind & Brain Science news and technology updates from Scientific American


Nature Reviews Neuroscience - Issue - nature.com science feeds Nature Reviews Neuroscience is the leading review journal in the neurosciences. It publishes articles that review recent progress in brain and nervous system research. Topics range from molecular and cellular aspects of neuronal development and function to behavior, cognition and disorders of the nervous system. By commissioning the best authors to write on the timeliest issues, and following a rigorous peer-review process, the journal provides an unparalleled source of information and opinion for neuroscientists in academia, clinical research and industry. One of the unique features of Nature Reviews Neuroscience is its extraordinary breadth and depth of coverage. This very broad scope – from molecules to mind – captures the essence of modern neuroscience, and allows the journal to attract readers from all areas of this ever-expanding discipline.

  • Two views on the cognitive brain
    by David L. Barack on April 15, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 15 April 2021; doi:10.1038/s41583-021-00448-6Neuroscience can explain cognition by considering single neurons and their connections (a ‘Sherringtonian’ view) or by considering neural spaces constructed by populations of neurons (a ‘Hopfieldian’ view). In this Perspective, Barack and Krakauer argue that the Hopfieldian view has the conceptual resources to explain cognition more fully the Sherringtonian view.

  • Molecular mechanisms of brain water transport
    by Nanna MacAulay on April 12, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 12 April 2021; doi:10.1038/s41583-021-00454-8The impairment of brain fluid homeostasis is a feature of various conditions, highlighting the need to better understand brain water transport for drug development. Here, Nanna MacAulay reviews the molecular mechanisms underlying transmembrane water movement in neurons and glia and across brain barriers, emphasizing the part played by water cotransporters in this process.

  • Spatial and temporal scales of dopamine...
    by Changliang Liu on April 9, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 09 April 2021; doi:10.1038/s41583-021-00455-7Dopamine is often portrayed as a diffuse, slow neuromodulator, yet such signalling cannot explain its broad and sometimes rapid roles. Here, Liu, Goel and Kaeser review recent insights into dopamine release and receptors and present a new framework — the domain-overlap model — for dopamine signalling.

  • Know thy future self
    by Damon Tomlin on April 7, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 07 April 2021; doi:10.1038/s41583-021-00464-6In humans, the anterior lateral prefrontal cortex is crucial for assessing the likelihood that a future decision will be correct.

  • Attractive odours
    by Sian Lewis on April 7, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 07 April 2021; doi:10.1038/s41583-021-00460-wAttractive odours