Age, Biography and Wiki
Haldan Keffer Hartline was born on 22 December, 1903 in Bloomsburg, Pennsylvania, US, is an American physiologist (1903 –1983). Discover Haldan Keffer Hartline's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 80 years old?
| Popular As |
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| Occupation |
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| Age |
80 years old |
| Zodiac Sign |
Sagittarius |
| Born |
22 December, 1903 |
| Birthday |
22 December |
| Birthplace |
Bloomsburg, Pennsylvania, US |
| Date of death |
1983 |
| Died Place |
Fallston, Maryland, US |
| Nationality |
United States
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We recommend you to check the complete list of Famous People born on 22 December.
He is a member of famous with the age 80 years old group.
Haldan Keffer Hartline Height, Weight & Measurements
At 80 years old, Haldan Keffer Hartline height not available right now. We will update Haldan Keffer Hartline's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.
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Not Available |
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Not Available |
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Not Available |
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Not Available |
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Not Available |
Dating & Relationship status
He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.
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| Parents |
Not Available |
| Wife |
Not Available |
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Not Available |
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Not Available |
Haldan Keffer Hartline Net Worth
His net worth has been growing significantly in 2023-2024. So, how much is Haldan Keffer Hartline worth at the age of 80 years old? Haldan Keffer Hartline’s income source is mostly from being a successful . He is from United States. We have estimated Haldan Keffer Hartline's net worth, money, salary, income, and assets.
| Net Worth in 2024 |
$1 Million - $5 Million |
| Salary in 2024 |
Under Review |
| Net Worth in 2023 |
Pending |
| Salary in 2023 |
Under Review |
| House |
Not Available |
| Cars |
Not Available |
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Haldan Keffer Hartline Social Network
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Timeline
Haldan Keffer Hartline (December 22, 1903 – March 17, 1983) was an American physiologist who was a co-recipient (with George Wald and Ragnar Granit) of the 1967 Nobel Prize in Physiology or Medicine for his work in analyzing the neurophysiological mechanisms of vision.
Hartline did his undergraduate studies at Lafayette College in Easton, Pennsylvania, graduating in 1923.
He began his study of retinal electrophysiology as a National Research Council Fellow at Johns Hopkins School of Medicine, receiving his medical degree in 1927.
After attending the universities of Leipzig and Munich as an Eldridge Johnson traveling research scholar from the University of Pennsylvania, he returned to the US to take a position in the Eldridge Reeves Johnson Foundation for Medical Physics at Penn, which was under the directorship of Detlev W. Bronk at that time.
Hartline married Elizabeth Kraus Hartline in 1936.
In 1940–1941, he was Associate Professor of Physiology at Cornell Medical College in New York City but returned to Penn and stayed until 1949.
In 1948, Hartline was elected to the United States National Academy of Sciences.
Then he became professor of biophysics and chairman of the Jenkins Department of Biophysics at Johns Hopkins University in 1949.
One of Hartline's graduate students at Johns Hopkins, Paul Greengard, also won the Nobel Prize.
He was elected to the American Philosophical Society in 1952 and the American Academy of Arts and Sciences in 1957.
Hartline joined the staff of Rockefeller University, New York City, in 1953 as professor of neurophysiology.
Hartline investigated the electrical responses of the retinas of certain arthropods, vertebrates, and mollusks, because their visual systems are much simpler than those of humans and thus easier to study.
He concentrated his studies on the eye of the horseshoe crab (Limulus polyphemus).
Using minute electrodes, he obtained the first record of the electrical impulses sent by a single optic nerve fibre when the receptors connected to it are stimulated by light.
He found that the photoreceptor cells in the eye are interconnected in such a way that when one is stimulated, others nearby are depressed, thus enhancing the contrast in light patterns and sharpening the perception of shapes.
Hartline thus built up a detailed understanding of the workings of individual photoreceptors and nerve fibres in the retina, and he showed how simple retinal mechanisms constitute vital steps in the integration of visual information.
Hartline was elected a Foreign Member of the Royal Society (ForMemRS) in 1966.
He was awarded the Nobel Prize in Physiology or Medicine in 1967.
