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Neurulation01:30

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Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
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The nervous system is one of the most complex systems in our body. It is organized into two main divisions: the central nervous system (CNS) and the peripheral nervous system (PNS).
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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
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Updated: Oct 17, 2025

A Neurite Outgrowth Assay and Neurotoxicity Assessment with Human Neural Progenitor Cell-Derived Neurons
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On Neurorights.

Marcello Ienca1,2

  • 1College of Humanities, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.

Frontiers in Human Neuroscience
|October 11, 2021
PubMed
Summary
This summary is machine-generated.

Neurorights, or neuro-rights, are ethical and legal principles protecting the human brain and mind. This paper analyzes neurorights to clarify their definition and application in neurotechnology governance and human rights law.

Keywords:
human rightsneuroethicsneurolawneurorightsscience policy

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Area of Science:

  • Neuroscience
  • Philosophy of Law
  • Ethics

Background:

  • Neuroethics and neurolaw increasingly analyze ethical-legal challenges in brain sciences.
  • Neurorights are defined as principles protecting the human brain and mental domain.
  • Public discourse on neurorights is high, but academic literature is scarce, risking conceptual confusion.

Purpose of the Study:

  • To provide a comprehensive normative-ethical, historical, and conceptual analysis of neurorights.
  • To address the semantic-normative ambiguity and conceptual confusion surrounding neurorights.
  • To establish neurorights as effective instruments for neurotechnology governance and human rights law.

Main Methods:

  • Historical reconstruction of neurorights.
  • Systematic conceptual taxonomy of neurorights.
  • Summary of policy initiatives and ethico-legal challenges.

Main Results:

  • Identified a need for clearer academic discourse on neurorights.
  • Outlined a framework for understanding and applying neurorights.
  • Highlighted priority areas for future research and policy development.

Conclusions:

  • A robust academic analysis of neurorights is crucial for effective neurotechnology governance.
  • Clarifying neurorights' conceptual and normative foundations is essential for their integration into international law.
  • Further interdisciplinary research is needed to address emerging ethico-legal challenges in neuroscience.