The collection contains reports at a meeting of the Leningrad Society of Physiologists, biochemists and pharmacologists named after I. M. Sechenov together with the Leningrad State Order of Lenin University named after A. A. Zhdanov, Leningrad Historical and Medical Society and Military Medical Academy named after S. M. Kirov, dedicated to the 100th anniversary of the publication of I. M. Sechenov's work "Brain Reflexes" and articles, published in the Journal of Higher Nervous Activity (issue 5, 1963) and in the Physiological Journal of the USSR.