Seymour S. Kety
Encyclopedia
Seymour S. Kety was an American neuroscientist who was credited with making modern psychiatry
Psychiatry
Psychiatry is the medical specialty devoted to the study and treatment of mental disorders. These mental disorders include various affective, behavioural, cognitive and perceptual abnormalities...

 a rigorous and heuristic branch of medicine by applying basic science to the study of human behavior in health and disease. After Kety died, his colleague Louis Sokoloff noted that: "He discovered a method for measuring blood flow in the brain, was the first scientific director of the National Institute of Mental Health
National Institute of Mental Health
The National Institute of Mental Health is one of 27 institutes and centers that make up the National Institutes of Health...

 (NIMH) and produced the most-definitive evidence for the essential involvement of genetic factors in schizophrenia
Schizophrenia
Schizophrenia is a mental disorder characterized by a disintegration of thought processes and of emotional responsiveness. It most commonly manifests itself as auditory hallucinations, paranoid or bizarre delusions, or disorganized speech and thinking, and it is accompanied by significant social...

."

Childhood

Semyour S. Kety was born in Philadelphia, Pennsylvania
Philadelphia, Pennsylvania
Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

 in 1915. Raised in a humble family household in Philadelphia, Kety was intellectually challenged and stimulated. As a child, Kety was involved in a car accident that injured his foot. Though he could still walk, Kety remained slightly physically impaired.

Schooling

For his education, Kety stayed in his home town of Philidelphia. Kety attended Central High School in Philidelphia and found himself excelling greatly in Chemistry
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....

. Running his own experiments in his homemade laboratory, Kety found a passion for Chemistry. Throughout high school, he pursued his interest in the physical sciences and also gained knowledge of both Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

 and Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

. Kety attended college and medical school at the University of Pennsylvania
University of Pennsylvania
The University of Pennsylvania is a private, Ivy League university located in Philadelphia, Pennsylvania, United States. Penn is the fourth-oldest institution of higher education in the United States,Penn is the fourth-oldest using the founding dates claimed by each institution...

, from which he graduated in 1940. He did a rotating internship at the Philadelphia General Hospital, but that was the extent of his clinical training. After finishing his internship, Kety went into research.

Kety's First Contribution to Science

During his internship, he married Josephine Gross, a childhood friend. She too was studying to be a doctor. Josephine wanted to be a pediatrician, which inspired Seymour to do research and study more about children. An increase in lead poisoning led to Kety's first contribution to medicine. More and more children came down with lead poisoning
Lead poisoning
Lead poisoning is a medical condition caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems...

 because they were chewing on their cribs, coated in paint containing lead. Seymour began to think about citrate to relieve the children of their lead poisoning. Citrate
Citrate
A citrate can refer either to the conjugate base of citric acid, , or to the esters of citric acid. An example of the former, a salt is trisodium citrate; an ester is triethyl citrate.-Other citric acid ions:...

 would help flush the lead out of the children's systems through urination. Called a chelating agent, Citrate was the first thing used to help treat heavy metal intoxication.

Kety's Slow Transition to Psychology

Following his internship, Kety decided to continue his research of lead poisoning. The National Research Council post-doctorate fellowship, received by Kety to continue his research, began in 1942. Kety worked under the supervision of lead poisoning specialist Joseph Aub. Only after Seymour arrived prepared to start his fellowship did he learn that Aub changed his area of study — he was now working with traumatic and hemmoragatic shock. Joseph Aub changed his work to study the shock because it was a time of war, and the research was pressing. While working with Aub, Kety found the circulation of the heart to be fascinating. Instead of returning to Harvard, Kety went to his alma mater, the University of Pennsylvania. While back in Pennsylvania, Seymour worked with Carl Schmidt, an expert in cerebral circulation. Kety became a pharmacology
Pharmacology
Pharmacology is the branch of medicine and biology concerned with the study of drug action. More specifically, it is the study of the interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function...

 instructor at the university.

Commonly known as a great teacher, Seymour was very popular among his students. Soon, everyone that knew Kety learned that he had a profound interest in cerebral circulation. His desire for knowledge was mostly to understand the process and to measure the flow of blood. Eventually, Kety and Schmidt worked together to form experiments about the cerebral circulation in a human. In time, they found a very effective method of measuring the flow of blood. Their work together was revolutionary.

After collaborating with many doctors on various projects, Seymour S. Kety became the chairman of the department of psychiatry
Psychiatry
Psychiatry is the medical specialty devoted to the study and treatment of mental disorders. These mental disorders include various affective, behavioural, cognitive and perceptual abnormalities...

 at John Hopkins University in 1961. After only one year, Kety resigned due to his lack of experience in psychiatry. He returned to his job as the Chief of Laboratory Science. Seymour, however, continued the research he was working on. He was researching the causes of schizophrenia
Schizophrenia
Schizophrenia is a mental disorder characterized by a disintegration of thought processes and of emotional responsiveness. It most commonly manifests itself as auditory hallucinations, paranoid or bizarre delusions, or disorganized speech and thinking, and it is accompanied by significant social...

. His focus was based on the genetical influences that cause the disease.

Kety's Results

Seymour spent much of his life studying Schizophrenia. He said that genetic influences may be largely responsible for psychosis, comparing it to phenylketonuria
Phenylketonuria
Phenylketonuria is an autosomal recessive metabolic genetic disorder characterized by a mutation in the gene for the hepatic enzyme phenylalanine hydroxylase , rendering it nonfunctional. This enzyme is necessary to metabolize the amino acid phenylalanine to the amino acid tyrosine...

 or Huntington’s disease. Kety's discoveries have been used and further developed into new theories.

Seymour Kety's Legacy

Kety had three major contributions in three different areas. In psychiatry, Kety discovered the strong link between genetics and the staggering disease of schizophrenia. As a physiologist, Seymour studied cerebral circulation and made advancements in the field. Kety's work with neuroscience was also a large accomplishment.

He never trained in psychiatry although he changed its course. In 1988 Kety was awarded the NAS Award in the Neurosciences
NAS Award in the Neurosciences
The NAS Award in the Neurosciences is awarded by the U.S. National Academy of Sciences "in recognition of extraordinary contributions to progress in the fields of neuroscience, including neurochemistry, neurophysiology, neuropharmacology, developmental neuroscience, neuroanatomy, and behavioral...

 from the National Academy of Sciences
United States National Academy of Sciences
The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...

. Kety also received awards from some of the most prestigious scientific groups, including the American Society of Arts and Sciences and the American Philosophical Association.
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