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Ștefan Odobleja

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Ștefan Odobleja
Born(1902-10-13)October 13, 1902
DiedSeptember 4, 1978(1978-09-04) (aged 75)
Resting placeOrthodox Cemetery, Drobeta-Turnu Severin, Romania
Alma materCarol Davila University of Medicine and Pharmacy
Occupation(s)Physician, military doctor, scientist
Known forPsychologie consonantiste

Ștefan Odobleja (Romanian pronunciation: [ʃteˈfan odoˈbleʒa]; 13 October 1902 – 4 September 1978) was a Romanian physician, scientist, and philosopher. He is known for his contributions to the study of cybernetics and artificial intelligence.[1]

His major work, Psychologie Consonantiste (first published in 1938 and 1939, in Paris) introduced the concept of feedback in psychology.


Odobleja was born into a family of peasants in 1902, in Valea Izvorului (now Ștefan Odobleja), Mehedinți County, Romania. He attended the Faculty of Medicine in Bucharest and became a physician. He practiced medicine as a military doctor in Bucharest, Dej, Drobeta Turnu-Severin, Lugoj, Târgoviște, and other Romanian cities.

In 1936, Odobleja published "Phonoscopy and the clinical semiotics". In 1937, he participated in the IXth International Congress of Military Medicine with a paper entitled "Demonstration de phonoscopie", where he disseminated a prospectus in French, announcing the appearance of his future work, "The Consonantist Psychology".[2]

The most important of his writings is Psychologie consonantiste, in which Odobleja lays the theoretical foundations of the generalized cybernetics. The book, published in Paris by Librairie Maloine [fr] (vol. I in 1938 and vol. II in 1939), contains almost 900 pages and includes 300 figures in the text.[3] The author wrote at the time that "this book is... a table of contents, an index or a dictionary of psychology, [for] a ... great Treatise of Psychology that should contain 20–30 volumes".

The first Romanian edition of this work did not appear until 1982 (the first edition was published in French). The work was reprinted in 1983 as Cybernétique générale: psychologie consonantiste, science des sciences.[4]

Odobleja retired from the army in 1946 and died of cancer on September 4, 1978. He was buried at the Orthodox Cemetery in Drobeta-Turnu Severin.[5]


His paper, "Diversity and Unit in Cybernetics" was presented at the Fourth Congress of Cybernetics and Systems in Amsterdam, August in 1978, being reportedly received "with great acclaim".[6] His completed works run to over 50,000 pages.

To reward his work of mapping the then little-known of field consonantist psychology, cybernetics, and general cybernetics, in 1990 Odobleja was elected posthumously an honorary member of the Romanian Academy.[7]

In 1982 a group of scientists established in Lugoj the Cybernetics Academy "Ștefan Odobleja", an organization dedicated to promoting a better knowledge of general cybernetics;[5] the organization is registered in Lugano, Switzerland, and is financed by the controversial Romanian billionaire Iosif Constantin Drăgan. High schools in Bucharest,[8] Craiova,[9] and Drobeta-Turnu Severin[10] are named after Ștefan Odobleja. Streets in Bucharest, Craiova, Dej, Drobeta-Turnu Severin, Oradea, and Pitești are also named after him.


  1. ^ Vlada, Marin; Adăscăliței, Adrian (2017). Ștefan Odobleja: A scientific visionary, precursor of cybernetics and artificial intelligence (PDF). The 12th International Conference on Virtual Learning ICVL 2017.
  2. ^ ""Series on Science and Technology of Information", Volume 2, 2009
  3. ^ Odobleja, Ștefan (1938–1939), Psychologie consonantiste, vol. 2 volumes, Paris: Librairie Maloine, 880 pages, OCLC 563648574
  4. ^ Odobleja, Ștefan (1983), Cybernétique générale: psychologie consonantiste, science des sciences (in French), Montreal, Roma: Nagard, xi+875 pages, OCLC 955246887
  5. ^ a b Munteanu, Irina. "O idee apărută cu zece ani prea devreme" [An idea that appeared ten years too early]. Jurnalul Național (in Romanian). Retrieved August 27, 2021.
  6. ^ Romanian Scientists "Series on Science and Technology of Information", Volume 2, 2009, p. 49
  7. ^ "Membrii Academiei Române din 1866 până în prezent". acad.ro (in Romanian). Romanian Academy. Retrieved August 27, 2021.
  8. ^ "Liceul Teoretic "Ștefan Odobleja" – București". www.liceulstefanodobleja.ro (in Romanian). Retrieved August 26, 2021.
  9. ^ "Liceul Tehnologic "Ștefan Odobleja", Craiova". www.stefanodoblejacraiova.ro (in Romanian). Retrieved August 26, 2021.
  10. ^ "Colegiul Național Pedagogic "Ștefan Odobleja"". www.cnpstefanodobleja.ro (in Romanian). Retrieved August 27, 2021.
  • Hinoveanu, Ilarie – Ștefan Odobleja: între "aventura științifică" și patimile glorificării, Craiova, Scrisul Românesc, 2003.

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