Brain Chemicals

Global Projections of Ancient Aromatic Neurotransmitters

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Brain chemicals are not unique to the brain. This article provides an evolutionary perspective on the function of aromatic neurotransmitters. Serotonin and catecholamines, such as noradrenaline and dopamine, are ancient chemicals known to have existed in unicellular organisms before flourishing in plants. Their function in primitive systems was intimately associated with photon capture and photosynthesis initiation. Many alkaloid drugs, including some of the most powerful hallucinogens known to man are derived from these aromatic chemicals and served as important antioxidants in plants. The loss of the ability in animals to synthesize both indoles and catechols when the plant plastids were lost created a crisis situation for survival. As a result, these two neurotransmitter chemicals participated in global systems in the humans with connections to every cell in the brain and spinal cord. The strategy of having global axonal projections coupled with the evolution of multiple receptors enabled human behavior to express its complex functions while maintaining a stable homeostatic environment over a human lifetime.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Human Behavior
Subtitle of host publicationSecond Edition
PublisherElsevier Inc.
Pages396-405
Number of pages10
ISBN (Electronic)9780123750006
ISBN (Print)9780080961804
DOIs
StatePublished - Jan 1 2012

Fingerprint

Neurotransmitter Agents
Brain
Catechols
Hallucinogens
Indoles
Aptitude
Plastids
Photosynthesis
Photons
Alkaloids
Catecholamines
Dopamine
Serotonin
Spinal Cord
Norepinephrine
Antioxidants
Survival
Pharmaceutical Preparations

Keywords

  • Benzene
  • Catecholamines
  • Evolution
  • Hallucinogens
  • Homeostasis
  • Hydroxylase
  • Indole
  • Photosynthesis
  • Serotonin

ASJC Scopus subject areas

  • Psychology(all)

Cite this

Azmitia, E. (2012). Brain Chemicals: Global Projections of Ancient Aromatic Neurotransmitters. In Encyclopedia of Human Behavior: Second Edition (pp. 396-405). Elsevier Inc.. https://doi.org/10.1016/B978-0-12-375000-6.00069-0

Brain Chemicals : Global Projections of Ancient Aromatic Neurotransmitters. / Azmitia, Efrain.

Encyclopedia of Human Behavior: Second Edition. Elsevier Inc., 2012. p. 396-405.

Research output: Chapter in Book/Report/Conference proceedingChapter

Azmitia, Efrain. / Brain Chemicals : Global Projections of Ancient Aromatic Neurotransmitters. Encyclopedia of Human Behavior: Second Edition. Elsevier Inc., 2012. pp. 396-405
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