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Serotonin is a neurotransmitter that plays an important role in the regulation of the body by physiological and behavioral processes. It also has a role in controlling the action of the biological clock, located in the suprachiasmatic nuclei (SCN) of the hypothalamus. Serotonergic innervation comes from the central nucleus of the midbrain seamless and interacts with the other two main projections of up to SCN. The basic role of serotonin is to modulate the biological clock work by weakening moving light information reaching the SCN. This is followed by the activation of 5HT1A receptor, 5HT1B and 5HT7 and has a role in adjusting the clock environmental lighting. Serotonin and its agonists are capable of phase shifting the rhythm of SCN neuronal activity. It also participates in the interaction of factors nieświetlnych the functioning of the circadian clock.
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The Editorial Board
Andrzej Łukaszyk - przewodniczący, Zofia Bielańska-Osuchowska, Szczepan Biliński, Mieczysław Chorąży, Aleksander Koj, Włodzimierz Korochoda, Leszek Kuźnicki, Aleksandra Stojałowska, Lech Wojtczak

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