Alois Alzheimer: The Lecture Nobody Wanted to Hear
On 3 November 1906, in a hall in Tübingen, a 42-year-old Bavarian psychiatrist described the brain of a woman who had died of a disease no one had a name for. Eighty-eight colleagues listened. Not one asked a question. The audience, by one account, was impatient for the next speaker, whose subject was compulsive masturbation. Four years later the condition Alois Alzheimer had just described would be carrying his surname, and a century after that it would be one of the most feared words in medicine.
The Notary's Son Who Chose the Microscope
Alzheimer was the son of Eduard Román Alzheimer, a notary public, and Anna Johanna Barbara Sabina, in Marktbreit, Bavaria, where he was born on 14 June 1864. The devoutly Catholic family moved to Aschaffenburg while he was still a boy, chasing better schooling. He took his Abitur in 1883 and then did what ambitious German medical students did: he moved. Berlin, Tübingen, Würzburg. The doctorate came in 1887.
What he did next was less conventional. In 1888 he took a post at the Frankfurt asylum — the Städtische Anstalt für Irre und Epileptische, the municipal institution for the insane and epileptic — under the psychiatrist Emil Sioli. Asylum medicine in the 1880s was largely custodial. Alzheimer treated it as a laboratory. Working alongside the neurologist Franz Nissl, whose staining techniques were transforming what could be seen inside a cell, he set himself the problem of "the normal and pathological anatomy of the cerebral cortex." The ambition was to make madness visible as tissue.
Frankfurt, and a Woman Who Could Not Say Her Name
In 1901 a 51-year-old woman named Auguste Deter was admitted at Frankfurt. She showed, in the clinical language of the time, strange behavioural symptoms and a striking loss of short-term memory. Her age was the anomaly. Dementia in the elderly was regarded as unremarkable, the ordinary silting-up of an old mind. Deter was in her early fifties.
Alzheimer's interest in her was not casual and it was not entirely comfortable to modern eyes. When her husband, unable to afford the fees, sought to move her to a cheaper institution, Alzheimer intervened and struck a bargain: he would arrange for her remaining care costs to be covered, and in return he would receive her medical records and, upon her death, her brain. It was a transaction, and it was also the moment a case became a study.
The Bielschowsky Stain
Auguste Deter died on 8 April 1906. By then Alzheimer had left Frankfurt. He had met Emil Kraepelin there, the most powerful psychiatrist in Germany and the man who would become his patron; when Kraepelin moved to Munich's Royal Psychiatric Hospital in 1903, Alzheimer followed. The two men were temperamentally complementary rather than identical. Kraepelin was a clinician, interested in classifying psychosis in the elderly at the bedside. Alzheimer was a laboratory man, interested in what the tissue said.
Deter's brain travelled to Munich. There Alzheimer and two Italian physicians applied the newly developed Bielschowsky silver stain and found two things: dense extracellular deposits — amyloid plaques — and, inside the neurons, twisted fibrillary bundles that would become known as neurofibrillary tangles. Those two features remain, more than a century later, the pathological definition of the disease. Alzheimer's own emphasis fell on the tangles; he conceived the condition as characterised clinically by a severe dementia with instrumental symptoms and pathologically by extended neurofibrillary tangles. The Prague pathologist Oskar Fischer, working the same territory, put the weight on the neuritic plaques instead. The argument between them was real, and it was never settled on the merits.
The Name
It was settled by Kraepelin. In 1910, in the eighth edition of his enormously influential *Handbook of Psychiatry*, in the chapter on presenile and senile dementia, Kraepelin called the condition Alzheimer's disease. Textbooks decide these things more often than discoveries do; Kraepelin's book proved more consequential than either Alzheimer's or Fischer's papers. By 1911 European physicians were using Alzheimer's description to diagnose patients in the United States.
The credit was never entirely clean. The American physician Solomon Carter Fuller had presented comparable findings five months before the Tübingen lecture. And the founding case itself has been contested: Amaducci and colleagues argued that Auguste Deter may in fact have had metachromatic leukodystrophy, while Claire O'Brien proposed vascular dementia. The disease is securely real. The proof-text may not be.
The Rest of the Work
Alzheimer is remembered for one thing, which flatters and diminishes him at once. He habilitated at Munich in 1904 and took a professorship there in 1908. He co-founded the *Zeitschrift für die gesamte Neurologie und Psychiatrie*. His neuropathological output ranged across cerebral arteriosclerosis, Huntington's disease, epilepsy and general paresis — the syphilitic brain disease that was then filling asylum beds. In July 1912 he accepted the chair of psychiatry and the directorship of the Neurologic and Psychiatric Institute at the Silesian Friedrich Wilhelm University in Breslau. He never wrote a book he could call his own.
Why Alois Is Called a Genius
The word sits awkwardly on him, and it is more honest to say what he actually had. Alzheimer's gift was not theoretical reach — he proposed no grand mechanism, founded no school of thought, and left no book. It was a combination of technical craft and refusal to accept a category. The craft was histological: an unusual patience with the slide, an eye trained by years beside Nissl to notice that two abnormalities in one cortex were a pattern rather than an artefact of staining. The refusal was conceptual and arguably the greater act. Everyone in 1901 knew that old people lost their minds and that this was simply age. Alzheimer looked at a 51-year-old and declined to file her under senility — recognising, as one recent assessment puts it, that dementia is not a natural consequence of age but a recognisable neurocognitive disorder with markers that can be found and, in principle, targeted.
The counter-case is substantial and should be stated. Kraepelin's patronage, not Alzheimer's argument, put the name on the disease; Fuller had described similar pathology first; Fischer's rival emphasis on plaques has fared at least as well in modern research; and the index case may have been a different illness altogether. What survives all of that is the method — the insistence that a psychiatric syndrome could be pursued into the tissue and caught there.
Legacy
He did not live to see any of it. Falling ill on the train to Breslau in August 1912, probably from a streptococcal infection that ran on into rheumatic fever, valvular heart disease and then heart and kidney failure, Alzheimer died on 19 December 1915, aged 51 — the same age Auguste Deter had been when she was admitted. He was buried four days later beside his wife Cecilie Simonette Nathalie Geisenheimer, whom he had married in 1894 and lost in 1901, at Frankfurt's Main Cemetery. The room that would not ask him a question in 1906 has been asking ever since.
Achievements
- Held posts at University of Wrocław and Ludwig-Maximilians-Universität München
- Fields: psychiatry and neuropathology
