History of neuroscience
neurophilosophy | November 6, 2010NEW York City in the 1920s and '30s was a hotbed of criminal activity. Prohibition laws banning the production, sale and distribution of alcohol had been introduced, but instead of reducing crime, they had the opposite effect. Gangsters organized themselves and seized control of the alcohol distribution racket, smuggling first cheap rum from the Caribbean, then French champagne and English gin, into the country. Speakeasies sprang up in every neighbourhood, and numbered more than 100,000 by 1925. When prohibition was abolished in 1933, the gangsters took to other activities, such as drug…
neurophilosophy | July 16, 2009
THE daguerreotype on the right is believed to be the only known image of railroad worker Phineas Gage, who was enshrined in the history of neuroscience one day in September, 1848, when a large iron rod he was using to tamp gunpowder into a hole in a rock caused an explosion and was propelled through his brain.
The photograph, which shows Gage holding the tamping iron, has been in the possession of photograph collectors Jack and Beverley Wilgus of Massachusetts for 30 years. They had believed it was of a whaler with his harpoon, but someone suggested it might in fact be Gage after it was…
neurophilosophy | November 14, 2008The current issue of Nature contains an interesting article about Sir Christopher Wren's contribution to neuroanatomy, by art historians Martin Kemp and Nathan Flis of Oxford University.
The article focuses on the anatomical illustrations produced by Wren for Thomas Willis's 1664 book Cerebri Anatome (The Anatomy of the Brain). This was a landmark publication in the history of neurology, not least because of Wren's detailed and accurate figures, which were among the very first modern images of brain anatomy. Even so, this aspect of Wren's work was overshadowed by his architectural designs,…
neurophilosophy | August 27, 2008The patient lies on the operating table, with the right side of his body raised slightly. The anaesthetist sterilizes his scalp and injects it with Nupercaine to produce analgesia - the patient will remain fully conscious throughout the procedure. Behind the surgical drapes, three large incisions are made in his scalp. A large flap of bone is then cut from his skull, and turned downward to expose the surface of his brain. The ultraviolet lights which illuminate the operating theatre and keep the air sterile are positioned in such a way that they do not shine directly upon the cortex.
Using an…
neurophilosophy | August 19, 2008The notorious Australian bushranger Edward "Ned" Kelly was apprehended in 1878, following a confrontation during which he and his gang killed three policemen. Upon his arrest, Kelly was thus described by the police:
5'10" tall, weight 11st 4lbs, medium build, sallow complexion, dark brown hair, hazel eyes, scar on top of head, two scars on crown, scar on front of head.
Eyebrows meeting, two natural marks between shoulder blades.
Two freckles lower left arm, scar on ball of left thumb, scar on back of right hand and three scars on left thumb.
Kelly was convicted of robbery and murder and…
neurophilosophy | May 13, 2008
The procedure known as trepanation, in which a hole is scraped or drilled in the skull, is an ancient form of neurosurgery that has been performed since the late Stone Age. Exactly why ancient peoples performed trepanation has remained a matter of debate: some researchers argue that it was performed for medical reasons, as it is today, while others believe it was done for magical or religious reasons.
A new study by two American anthropologists now provides evidence that the Incas performed trepanation to treat head injuries; that the procedure was far more common than was previously…
neurophilosophy | May 10, 2008In Thursday's episode of the BBC Radio 4 programme In Our Time, presenter Melvyn Bragg was joined by Vivian Nutton, Jonathan Sawday and Marina Wallace (professors of the history of medicine, English and art, respectively) for a fascinating discussion about the history of the brain.
The 45-minute programme, which can be downloaded as a RealPlayer file from the link above, focuses on how perceptions of the brain have changed over the past 2,500 years, beginning with the first brain dissections, which were performed by Herophilus and Erasistratus in Alexandria, apparently on live criminals!…
neurophilosophy | March 28, 2008Jennifer Ouellette reports from a month-long program on the anatomy, development and evolution of the brain, at the Kavli Institute for Theoretical Physics, with a fantastic post called Tools of the brain trade.
Inspired by a talk given by Winifred Denk, about reconstructing brain circuitry using serial electron microscopy, Jennifer's post covers the discovery by Camillo Golgi of the silver chromate method for impregnating samples of brain tissue, and the refinement of the technique by Santiago Ramon y Cajal. It concludes with a brief mention of modern imaging techniques, such as two-photon…
neurophilosophy | March 19, 2008
Image: Phisick Antique Medical Collection
This highly detailed papier mache model of the human brain, which can be pulled apart to reveal labelled and numbered structures within, was created by the French physician Louis Thomas Jerome Auzoux (1797-1880).
In the early 19th century, human cadavers for the study of anatomy were in short supply. The dissection of human corpses was difficult, due to the fast rate of decomposition, and also illegal. And the wax anatomical models available at the time were both fragile and expensive.
Taking his inspiration from the childrens' toys sold on the…
neurophilosophy | March 15, 2008For the benefit of new readers, I've selected what I think are the best posts from this blog.
Wilder Penfield, Neural Cartographer: The patient lies on the operating table, with the right side of his body raised slightly. The anaesthetist sterilizes his scalp and injects it with Nupercaine to produce analgesia - the patient will remain fully conscious throughout the procedure. Behind the surgical drapes, three large incisions are made in his scalp. A large flap of bone is then cut from his skull, and turned downward to expose the surface of his brain. The ultraviolet lights which illuminate…
neurophilosophy | March 12, 2008
(AP Photo/Greek Culture Ministry, HO)
This skeleton, exacavated recently in the town of Veria, some 75km west of Thessalonika, provides evidence that the ancient Greeks performed sophisticated neurosurgery.
The remains, dated to the 3rd century A.D., belong to a woman aged around 25, who appears to have died as a result of a failed craniotomy which was performed to treat a severe blow to the crown of the head.
The large hole above the eyes is precisely cut, suggesting that the skull was perforated with specialized instruments and not a sharp stone.
neurophilosophy | February 25, 2008The Lobotomist, a PBS documentary about Walter Freeman which I mentioned recently, is now available online as a series of short clips that require either QuickTime or Windows Media Player for viewing.
The program charts how the lobotomy came to be regarded as a cure for most types of mental illness, how Freeman "refined" the procedure, and how, in the face of criticism, it was eventually replaced in the 1950s by the newly-developed neuroleptic drugs.
Read more about the rise and fall of the prefrontal lobotomy, and watch a film clip of James Watts and Walter Freeman performing a prefrontal…
neurophilosophy | January 15, 2008A forthcoming PBS documentary called The Lobotomist examines the career of psychiatrist Walter J. Freeman, who performed nearly 3,000 "ice pick" lobotomies during the late 1930s and 1940s.
The hour-long program, which is partly based on Jack El-Hai's book of the same name, contains old footage of Freeman performing the procedure, and features an interview with Howard Dully, who was lobotomized at the age of 12 (and whose memoir was published last year).
Freeman fiercely advocated - and popularized - the lobotomy. He travelled across the U.S. in his "lobotomobile", teaching others how to…
neurophilosophy | January 14, 2008I returned to UCL today, after spending the first week of the new term writing my second piece of coursework for the M.Sc., a 2,000-word essay about AMPA receptor recomposition in synaptic plasticity, which I'll post on here soon.
The third block began today with a lecture on nociception (pain), and a brain dissection. It wasn't a dissection as such, because human brains are, for some reason, in short supply, so me and the other students spent nearly 2 hours gathered around two preserved specimens - a whole brain and a sagittal section.
This was disappointing, as I was hoping that we might be…
neurophilosophy | November 2, 2007On November 4th, 1906, during a lecture at the 37th Conference of South-West German Psychiatrists in Tubingen, the German neuropathologist and psychiatrist Alois Alzheimer (1864-1915, right) described "eine eigenartige Erkrankung der Hirnrinde" (a peculiar disease of the cerebral cortex). In the lecture, he dicussed "the case of a patient who was kept under close observation during institutionalisation at the Frankfurt Hospital and whose central nervous system had been given to me by director Sioli for further examination". This was the first documented case of the form of dementia that would…
neurophilosophy | October 2, 2007Giovanni Aldini's electrical experiments on executed criminals in Bologna, from Essai theorique et experimental sur le galvanisme, published in 1804. (Image from the Rare Book and Manuscript Collections at Cornell University Library.)
The experiments of Italian physicist Giovanni Aldini (1762-1834) provided Mary Shelley with some of the inspiration for her classic gothic novel Frankenstein.
Aldini was the nephew of Luigi Galvani, who, in the 1700s, made a major contribution to the understanding of nerve function. In 1798, Aldini became a professor of physics at the University of Bologna,…
neurophilosophy | August 13, 2007After writing this recent post about Fyodor Dostoyevsky's epilepsy, I decided it was time I re-read one of the great author's novels, and chose The Idiot, because it contains Dostoyevsky's most vivid descriptions of the epileptic aura. (It is widely believed that Dostoyevsky based the protagonist, Prince Myshkin, on himself.) I'm reading a Penguin Classics edition of the book, which was translated by David McDuff, and was first published in 2004.
In The Idiot, Myshkin's epilepsy is first mentioned in chapter one. In the online edition of the book, which I quoted in the post about…
neurophilosophy | August 4, 2007
Skeleton, brain, nerves, from John Banister's Anatomical Tables, c. 1580.
From the Anatomy Acts Exhibition website (via Morbid Anatomy).
neurophilosophy | July 24, 2007
LOBOTOMY (from the Greek lobos, meaning lobes of the brain, and tomos, meaning cut) is a psychosurgical procedure in which the connections the prefrontal cortex and underlying structures are severed, or the frontal cortical tissue is destroyed, the theory being that this leads to the uncoupling of the brain's emotional centres and the seat of intellect (in the subcortical structures and the frontal cortex, respectively).
The lobotomy was first performed on humans in the 1890s. About half a century later, it was being touted by some as a miracle cure for mental illness, and its use became…
neurophilosophy | July 16, 2007
The French anatomist, anthropologist, and surgeon Pierre Paul Broca (1824-1880) is best remembered for his descriptions of two patients who had lost the ability to speak after sustaining damage to the left frontal lobe of the brain. Broca's observations of these patients, and the conclusions he reached after his post-mortem examinations, would lead to major advances in the understanding of the brain, and laid the foundations for modern neuropsychology.
In 1859, Broca founded the Societe d'Anthropologie de Paris. Two years later, several heated debates had arisen there: one was about the…