Tomotani Barbara Mizumo, Amaya Juan Pablo, Oda Gisele Akemi, Valentinuzzi Veronica Sandra
Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, São Paulo , São Paulo, Brazil.
Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja, CRILAR-CONICET, Entre Rios y Mendoza s/n, 5301 Anillaco, La Rioja, Argentina.
Sleep Sci. 2016 Oct-Dec;9(4):280-284. doi: 10.1016/j.slsci.2016.06.001. Epub 2016 Oct 1.
South American subterranean rodents are mainly described as solitary and mutual synchronization was never observed among individuals maintained together in laboratory. We report that a single birth event was capable of disrupting the robust nocturnal activity rhythm of singly housed tuco-tucos from north-west Argentina. "Around-the-clock activity" was displayed by 8 out of 13 animals whose cages were closer to the newborn pups. However, experimental exposure to a pup vocalization did not produce a similar effect on the rhythms of adult animals. Our results indicate an effect of social interaction in the expression of biological rhythms even in solitary animals.
南美洲的地下啮齿动物主要被描述为独居,在实验室中共同饲养的个体之间从未观察到相互同步的现象。我们报告称,一次单一的出生事件能够打乱来自阿根廷西北部单独饲养的土库土鼠强烈的夜间活动节律。13只笼子靠近新生幼崽的动物中有8只表现出了“全天候活动”。然而,让成年动物实验性接触幼崽的叫声对其节律并未产生类似影响。我们的结果表明,即使是独居动物,社会互动在生物节律的表达中也会产生影响。