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Rapid fragmentation of neuronal networks at the onset of propofol-induced unconsciousness

机译:丙泊酚引起的意识丧失发作时神经网络的快速破碎

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General anesthesia involves rapidly inducing a reversible coma by administering a large dose of a fast-acting drug, such as propofol. Previous research has demonstrated that propofol enhances inhibitory input to neurons throughout the spinal cord, brainstem, thalamus, and cortex (1). However, how these effects in single cells translate to larger-scale neural circuits and cause unconsciousness is not well understood. We recorded spiking activity from ensembles of single neurons and intracranial electrical activity during the induction of propofol general anesthesia in human subjects undergoing surgery.
机译:全身麻醉涉及通过施用大剂量的速效药物(如丙泊酚)来迅速诱发可逆性昏迷。先前的研究表明,丙泊酚可增强整个脊髓,脑干,丘脑和皮质神经元的抑制性输入(1)。然而,这些作用在单细胞中如何转化为更大范围的神经回路并引起意识丧失,目前尚不清楚。我们记录了在接受手术的人类受试者中异丙酚全麻诱导过程中单个神经元集合的尖峰活动和颅内电活动。

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    Department of Brain and Cognitive Sciences Massachusetts Institute of Technology, Cambridge, MA 02139;

    Department of Brain and Cognitive Sciences Massachusetts Institute of Technology, Cambridge, MA 02139;

    Center for Brain Science, Harvard University, Cambridge, MA 02138,Xenter for Theoretical Biological Physics,University of California at San Diego, La Jolla, CA 92093;

    Departments of Neurology, and Harvard Medical School, Boston, MA 02115,Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology,Massachusetts Institute of Technology, Cambridge, MA 02139;

    Departments of Neurosurgery, Massachusetts General Hospital, Boston, MA 02114,Departments of Surgery,Harvard Medical School, Boston, MA 02115;

    Departments of Surgery,Harvard Medical School, Boston, MA 02115,Department of Neurosurgery, Boston Children's Hospital, Boston, MA 02115;

    Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287;

    Departments of Neurology, and Massachusetts General Hospital, Boston, MA 02114,Rehabilitation Research and Development Service, Department of Veterans Affairs, Providence, Rl 02908,institute for Brain Science, School of Engineering, Brown University, Providence, Rl 02912;

    Departments of Neurology, and Massachusetts General Hospital, Boston, MA 02114,Departments of Neurology, and Harvard Medical School, Boston, MA 02115;

    Department of Brain and Cognitive Sciences Massachusetts Institute of Technology, Cambridge, MA 02139,Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology,Massachusetts Institute of Technology, Cambridge, MA 02139,Departments of Anesthesia Harvard Medical School, Boston, MA 02115,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139;

    Departments of Anesthesia, Critical Care and Pain Medicine,Massachusetts General Hospital, Boston, MA 02114,Departments of Anesthesia Harvard Medical School, Boston, MA 02115;

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