Canadian Scientist Biography: David H. Hubel and His Contributions

This report provides a detailed biography of David H. Hubel, a prominent Canadian neuroscientist. It covers his birth, education, and significant career events, including his collaboration with Torsten Wiesel. The report outlines Hubel's major contributions to the field of neuroscience, particularly his work on visual perception and the understanding of brain mechanisms. It highlights his discoveries related to the cells of the occipital cortex, their reactions to various stimuli, and the organization of cells in columns. The report also mentions his Nobel Prize in Physiology or Medicine in 1981, acknowledging his impact on the analysis of neurons in the cerebral cortex. The report concludes with a summary of his contributions to the field of brain and visual perception and includes a list of references used in the preparation of the biography.

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David H. Hubel
 David H. Hubel took birth on 27
February, 1926 in B Ontario, Canada
(The Nobel Prize, 2014).
 He went to McGill Med school as well
as Neurology residency
 In the year 1959 he pursued Hopkins
Neurology Fellowship
o Later on, he began recording
through primary visual cortex of
cats
o Then, he invented contemporary
metal electrodes (Wurtz, 2016).
(27 February, 1926– 22 September 2013)
(AUTHOR, 2019)
o Besides, he measured firing of brain-cells in cats
o In addition, during year 1958 in Hopkins David and Dr. Wiesel began their
collaboration as they both were recruited to Harvard and hence collaborated
for more than 20 years (Hubel & Wiesel, 2004).
 In the year 1959 Hubel joined HMS as his career option till he died in 22 September
2013.
 Canadian Scientist David H. Hubel was the renowned neuroscientist of the 20th era.
The experiments of him revolutionized world’s understanding about the brain
mechanisms (Czepita, 1999).
 His contribution in the field of research was based on the light around us. He
proposed that in our cerebral cortex light signals are analysed in sequence through
cells along with the particular tasks of interpreting patterns, contrasts as well as
movements (Hubel & Wiesel, 2004).
 Discoveries of David and Torsten are :
 Vision Neurophysiology
 Cells of occipital cortex react towards movement, straight lines and contrast
 Info processing inside visual system

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 Few cells fire quickly while reacting towards horizontal lines, whereas
others react to vertical lines and angles
 Cells having similar functions are typically organized in columns (Wurtz,
2016).
 Besides, David’s long-term collaboration with Torsten N. Wiesel discovered the
ordered activity of sole neurons inside the visual cortex. Hence, his work escorted in
the present era of neurons analysis at multi levels of the cerebral cortex which assist
in analysing the efficient brain circuits behaviour of human brain. In this way, the
above achievements allowed him to receive the Nobel Prize for Physiology in the year
1981 (The Nobel Prize, 2014).
 In this way, great scientist David H. Hubel has contributes a lot to the field of Brain
and Visual Perception through his 25-year collaboration with Dr Wiesel. The both
scientists collaboration invented a lot of things in this field as he has discovered that
our vision cannot grow habitually if our brain fails to connect with the eye in the early
time of life (Czepita, 1999).
Finally, the history of Neuroscience has presented in this biography of Canadian
Scientist.
References
Czepita, D. (1999). David H. Hubel, Torsten N. Wiesel, Nigel W. Daw: the creators of
modern visual neurophysiology. Klinika oczna, 101(1), 63-65.
Hubel, D., & Wiesel, T. (2004). Brain and visual perception: the story of a 25-year
collaboration. Oxford: Oxford University Press.
The Nobel Prize. (2014). David H. Hubel Biographical. Retrieved from The Nobel Prize:
https://www.nobelprize.org/prizes/medicine/1981/hubel/biographical/
Wurtz, R. (2016). David Hunter Hubel. 27 February 1926—22 September 2013. UK: The
Royal Society.