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Unveiling the speechless brain: Edward C Séguin and the aphasia debate in 1868
  1. Antonio Nogueira de Almeida
  1. Department of Functional Neurosurgery, University of São Paulo, São Paulo, Brazil
  1. Correspondence to Dr Antonio Nogueira de Almeida, Department of Functional Neurosurgery, University of São Paulo, Praça Amadeu Amaral 27 sala 31, São Paulo, SP CEP 01323-001, Brazil; antonio.almeida{at}

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Dr Edward Constant Séguin (1843–1898) was born in Paris, France. His father, Édouard Séguin (1812–1881), was a well-known French physician with a special interest in the treatment of idiocy, now known as profound mental retardation.1 The family moved to the USA after the revolution of 1848, settled first in Ohio and soon after moved to New York. Séguin graduated from the College of Physicians and Surgeons in 1864. That same year, he started working at the New York Hospital as an intern and later as a physician, until 1867. After a period of 2 years in New Mexico, he was appointed as a pathologist at Connecticut Hospital for the insane and held that position for 10 years. From 1869 to 1870, Séguin went to France, spending approximately a year studying the nervous system, under Charcot, Ranvier and Brown-Sequard. In 1871, he became a member of the faculty of the College of Physicians and Surgeons, lecturing at this institution from 1871 to 1885.2 Part of his vast scientific and intellectual production was published in book form in 1884.3 Séguin's work comprised several fields in medicine. He was a pioneer in the clinical use of the thermometer to measure core temperature and published numerous studies on …

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  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.