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.

  • Formation and integration of new neurons in the...
    by Annina Denoth-Lippuner on February 25, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 25 February 2021; doi:10.1038/s41583-021-00433-zIn this Review, Denoth-Lippuner and Jessberger present recent insights into adult hippocampal neurogenesis in rodents — from stem cell activation to the integration of newborn neurons into pre-existing circuits — and describe how newborn neurons affect brain function.

  • Stressed out decision making
    by Sian Lewis on February 22, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 22 February 2021; doi:10.1038/s41583-021-00442-yStressful experience increases erroneous choices in a reward-based learning task by weakening excitatory synapses in the lateral habenula via a reduction in AMPA-receptor-mediated synaptic transmission.

  • The molecular biology of FMRP: new insights into...
    by Joel D. Richter on February 19, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 19 February 2021; doi:10.1038/s41583-021-00432-0Inactivation of the gene encoding fragile X mental retardation protein (FMRP) drives the impairments in brain development and function that underlie fragile X syndrome. Richter and Zhao illustrate how innovative genetic and molecular biology tools have enhanced our understanding of both FMRP’s function and the causes of fragile X syndrome pathophysiology.

  • Neuroprosthetic control of blood pressure
    by Katherine Whalley on February 15, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 15 February 2021; doi:10.1038/s41583-021-00440-0A neuroprosthetic baroreflex can restore haemodynamic stability in models of acute and chronic spinal cord injury.

  • Reflected responses
    by Natasha Bray on February 8, 2021 at 12:00 am

    Nature Reviews Neuroscience, Published online: 08 February 2021; doi:10.1038/s41583-021-00439-7Activity in different parts of the mouse striatum is faithfully predicted by topographically connected areas of cortex.