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Related Concept Videos

Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to the body's upright...
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Functional Divisions of the Nervous System

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Hindbrain
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Localizing Function-specific Targets for Transcranial Magnetic Stimulation in the Absence of Navigation Equipment
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Nonlocal neurology: beyond localization to holonomy.

G G Globus1, C P O'Carroll

  • 1Department of Psychiatry, College of Medicine, University of California Irvine, Irvine, CA, USA. ggglobus@uci.edu

Medical Hypotheses
|April 27, 2010
PubMed
Summary
This summary is machine-generated.

Quantum brain theory offers new insights into neurological conditions like Charles Bonnet syndrome, explaining consciousness disintegration. This nonlocal approach, based on holonomy, aims to understand the patient as a whole.

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Area of Science:

  • Neuroscience
  • Quantum Physics
  • Philosophy of Mind

Background:

  • Traditional neurology relies on local pathology models.
  • Existing models struggle to explain phenomena like Charles Bonnet syndrome, disjunctive agnosia, and schizophrenia, which show content disunity within unified consciousness.
  • Split-brain cases exhibit both content and consciousness disunity.

Purpose of the Study:

  • To explore quantum brain theory's potential for explaining neurological disunity.
  • To present dissipative quantum brain dynamics and its application to the binding problem, memory, and consciousness.
  • To propose a nonlocal neurology framework based on holonomy.

Main Methods:

  • Review of existing neurological models (self-organizing nonlinear brain dynamics, global workspace, dynamic core).
  • Introduction of quantum brain theory and its nonlocal mechanisms (holonomy).
  • Presentation of dissipative quantum brain dynamics.

Main Results:

  • Quantum brain theory provides a framework for understanding disintegration within the unity of consciousness.
  • Holonomy offers a mechanism for nonlocal interactions in the brain.
  • Dissipative quantum brain dynamics addresses the binding problem, memory, and consciousness.

Conclusions:

  • Quantum brain theory and holonomy offer novel explanations for complex neurological phenomena.
  • A nonlocal neurology approach may provide a more holistic understanding of patients.
  • This framework has the potential to deepen clinical neurology's insights.