Category: Neurology
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A note on handedness
JMS Pearce Hull, England, United Kingdom Handedness (chirality) refers to the preferential use of one hand over the other. It is a matter of degree; it is seldom absolute. Population left and right preference existed in the Neanderthals (lived from 400,000 to about 40,000 years ago) onwards. Only homo sapiens amongst the great apes…
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The migraine aura and royal astronomers
JMS Pearce Hull, England, United Kingdom Fig 1. George Airy’s visual hallucinations from London, Edinb., and Dubl. Phil. Mag., ser. 4, 80: 19-21, 1865. reproduced in Jarcho S.11 Spleen sighs for ever on her pensive bed, Pain at her side and megrim at her head. — “Rape of the Lock”, Alexander Pope (1688-1744) …
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Broca’s Brains: A lesson in the importance of saving the history of neuroscience
Richard Brown Halifax, NS, Canada Thalia Garvock-de Montbrun Montreal, QC, Canada Figure 1. Brain of patient (Lelong) with aphasia studied by Broca. Photo taken by Richard Brown May 2017. Recent fires at the National Museum of Brazil and at the University of Cape Town in South Africa1,2 have shown the fragility of rare books,…
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The intricate forest of the neuron
Silvia Maina Torino, Italia A Purkinje neuron from the human cerebellum. Ink drawing by Santiago Ramón y Cajal. Via Wikimedia. Public domain. Entering the room, I was welcomed by some small and attractive ink drawings. In the first, like a genealogical tree or a medieval miniature, thin branches stretched to fill the frame. In the…
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Eye-brain-extremity coordination and enduring sports achievement
Marshall Lichtman Rochester, New York, United States Rafael Nadal. Photo by Carine06. 2016. Via Flickr. CC BY-SA 2.0 Neuroscientists have imaged the brain of athletes, looking for changes related to the sports they played, whether principally aerobic or anaerobic. These efforts have suggested expansion of the gray matter in certain anatomical areas of the…
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Encephalitis lethargica
Front page of Encephalitis lethargica. Its sequelae and treatment by Constantin Von Economo, 1931. Via Wikimedia. Encephalitis lethargica was a worldwide epidemic during the years 1918-1930 that resembled influenza. It was first described in Vienna in 1916 by Constantin von Economo in thirteen patients suffering from unusual neurological symptoms that he thought constituted a new…
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John Hughlings Jackson
JMS Pearce Hull, England Fig 1. John Hughlings Jackson. Selected writings of John Hughlings Jackson: frontispiece. Credit: Wellcome Collection. Attribution 4.0 International (CC BY 4.0). “. . . A man among the little band of whom are Aristotle and Newton and Darwin.” -Gustave I. Schorstein (1863-1906), physician at the London Hospital The magnitude…
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Macdonald Critchley
JMS Pearce East Yorks, England Fig 1. Macdonald Critchley by Norman Hepple. Credit: National Hospital for Neurology and Neurosurgery, UCLH Arts. Source Macdonald Critchley was a neurologist of elegance and sophistication.1 He was pre-eminently a clinical investigator of disorders of higher mental functions, especially those relating to language. He was the author of many…