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Kepler's First Law of Planetary Motion01:10

Kepler's First Law of Planetary Motion

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Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
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Related Experiment Video

Updated: Jun 19, 2026

Conditions Affecting Social Space in Drosophila melanogaster
08:04

Conditions Affecting Social Space in Drosophila melanogaster

Published on: November 5, 2015

'Eccentricity', by DH Tuke (1892).

German E Berrios1

  • 1University of Cambridge, UK.

History of Psychiatry
|May 14, 2024
PubMed
Summary

Eccentricity evolved from an astronomical term to a personality trait linked with psychopathology and creativity. Psychiatry medicalized eccentricity, connecting it to psychoticism and personality disorders.

Area of Science:

  • Psychiatry
  • Psychology
  • History of Science

Background:

  • The term 'eccentricity' originated in astronomy before the eighteenth century.
  • It later evolved to describe behaviors considered odd, strange, or extravagant.

Observation:

  • Eccentricity was reified into a personality trait, gaining significant explanatory power.
  • This conceptual shift increased its popularity and facilitated connections with psychopathology and neuropsychology.

Findings:

  • Alienism, now known as Psychiatry, played a key role in medicalizing eccentricity.
  • This process linked eccentricity to the concept of madness, and subsequently to notions of genius and creativity.

Implications:

  • Eccentricity remains closely associated with psychoticism and certain personality disorders in contemporary understanding.
Keywords:
Alienismdeviancyeccentricitymadnesspersonality

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  • The historical medicalization of eccentricity continues to influence its perception in psychology and psychiatry.