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Alexander I. Roitbak : ウィキペディア英語版
Alexander I. Roitbak

Alexander Illich Roitbak (February 17, 1919, Odessa — December 24, 1991, Tbilisi) was a Soviet and Georgian physiologist. Member of the Academy of Sciences of the USSR (1968) and the International Brain Research Organization.〔("Bolshaia Sovetskaia Encyklopedia" )〕
==Biography==
A. I. Roitbak graduated from the Kiev Medical Institute in 1941. In 1944 he joined the staff in the Institute of Physiology of the Georgian Academy of Sciences in Tbilisi under its founder and first director, Professor Ivan S. Beritashvili.〔 He earned his first research degree under Beritashvili's direction, and remained his collaborator and friend for life. In 1960 he became head of the Laboratory of General Cerebral Cortex Physiology. Roitbak and his wife, Ciala Dedabrishvili, a fellow physiologist, had two daughters, Maria and Tamara.
Roitbak's principal works are focused on neurophysiology. He is one of the pioneers of electrophysiological investigation of the central nervous system, and considered the first neurophysiologist in the Soviet Union to investigate electrical potentials of the cerebral cortex during its direct electrical stimulation. Roitbak discovered that by rhythmically stimulating the cortex of the large hemispheres it is possible to create a focus of excitation, or a dominant.〔http://encyclopedia2.thefreedictionary.com/Roitbak%2c+Aleksandr+Ilich〕 In recordings of field potentials he recognized that the dendritic potential evoked by direct cortical stimulation corresponded to the EPSP generated by apical dendrites. Later research areas included the relationship of sustained potential shifts, potassium levels, and glial potentials. Roitbak proposed a hypothesis on the role of neuroglia in the formation of the temporary connections that are the basis of conditioned reflexes.〔("The passing of a hero of neuroscience: An appreciation of Alexander I. Roitbak. G. G. Somjen, E. V. Ocherashvili" )〕
The list of publications of A.I. Roitbak exceeds 260 titles. He organized scientific symposia on ''Slow Electrical Potentials of the Nervous System'' (1966), ''Mechanisms of Temporary Connections'' (1975), and ''Functions of Neuroglia'' (1976, 1984, 1989)〔

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