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


  • Boosting regeneration
    by Sian Lewis on October 22, 2018 at 12:00 am

    Boosting regenerationBoosting regeneration, Published online: 22 October 2018; doi:10.1038/s41583-018-0083-3Boosting regeneration […]

  • CA2 bursting
    by Sian Lewis on October 22, 2018 at 12:00 am

    CA2 burstingCA2 bursting, Published online: 22 October 2018; doi:10.1038/s41583-018-0082-4CA2 bursting […]

  • CNS infection and immune privilege
    by John V. Forrester on October 11, 2018 at 12:00 am

    CNS infection and immune privilegeCNS infection and immune privilege, Published online: 11 October 2018; doi:10.1038/s41583-018-0070-8Traditionally, the CNS is described to have immune privilege, largely because of its immunological barriers. Here, Forrester, McMenamin and Dando describe how this immune privilege may sometimes not be beneficial, as it enables invading pathogens to exist as latent CNS infections. […]

  • Maintenance, reserve and compensation: the...
    by Roberto Cabeza on October 10, 2018 at 12:00 am

    Maintenance, reserve and compensation: the cognitive neuroscience of healthy ageingMaintenance, reserve and compensation: the cognitive neuroscience of healthy ageing, Published online: 10 October 2018; doi:10.1038/s41583-018-0068-2Age-related changes in cognitive ability are the focus of a growing field of research. Cabeza, Rajah and colleagues aim to promote clarity in the field by agreeing upon consensual definitions for three widely discussed concepts: maintenance, compensation and reserve. […]

  • Imaging-based parcellations of the human brain
    by Simon B. Eickhoff on October 9, 2018 at 12:00 am

    Imaging-based parcellations of the human brainImaging-based parcellations of the human brain, Published online: 09 October 2018; doi:10.1038/s41583-018-0071-7The brain can be parcellated into areas or networks with different structural or functional properties. Eickhoff, Yeo and Genon describe various imaging-based strategies to parcellate the human brain, including those based on local properties, such as cytoarchitecture, and global properties, such as connectivity. […]