Naslov
Homeostasis of three coupled circadian oscillators in time varying external conditions

Autori
Martinis, Mladen ; Mikuta-Martinis, Vesna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
15th Psychology Days in Zadar ; Book of Selected Proceedings / Ćubela - Adorić, Vera - Zadar : Sveučilište u Zadru, 2007, 224 - 231

ISBN
978-953-7237-21-9

Skup
15th Psychology Days in Zadar 2006

Mjesto i datum
Zadar, Hrvatska, 25.05.2006. - 27.05.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
circadian rhythms; coupled circadian oscillators; limit cycle oscillator; synchronization

Sažetak
We study the synchronization problem of three limit cycle oscillators with time dependent mutual coupling. Oscillators are in the state of homeostasis under stationary external conditions. However, their behavior becomes quite different, if a sudden change happens in one of the external parameters. With these oscillators, we model the relationship between the heart rate circadian, blood pressure circadian and the body temperature circadian oscillations. Working in the complex phase space of oscillators, we observed variety of stationary and nonstationary behaviours which depend on the coupling between the oscillators, frequency differences, and on their limit cycle radii. Two important stationary solutions are found, the amplitude death and the frequency locking (synchronization) phenomena.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA