N.G. Bibikov − Dr.Sc. (Biol.), Chief Research Scientist, JSC N.N. Andreev Acoustic Institute (Moscow)

E-mail: nbibikov1@yandex.ru

I.V. Makushevich − Research Scientist, JSC N.N. Andreev Acoustic Institute (Moscow) 

E-mail: iliamail@rambler.ru

S.V. Nizamov − Research Scientist, JSC N.N. Andreev Acoustic Institute (Moscow) 

E-mail: seni13@mail.ru

The spontaneous firing of a single neuron located in the auditory center of the grass frog is analyzed in detail. It is shown that this activity cannot be considered as a renewal point process. It has the signs of periodicity in analyzing the short intervals interspike distribution, but when analyzing the distribution over the whole signal duration, its quasifractal features usually could be seen. (are revealed)

1. Bibikov N.G., Dymov A.B. Otklonenija ot processa vosstanovlenija v spontannoj impul'snoj aktivnosti nejronov kohlearnogo jadra ljagushki // Biofizika. 2007. T. 52. № 6. S. 1073−1086.
2. Hurst H.E. Long term storage capacity of reservoirs // Transactions of the American Society of Civil Engineers. 1951. V. 116. № 1. P. 770−799.
3. Najman Je.L. Raschjot pokazatelja Hersta s cel'ju vyjavlenija trendovosti (persistentnosti) finansovyh rynkov i makrojekonomicheskih indikatorov // URL: http://wealth-lab.net/Data/Sites/1/SharedFiles/doc/forindicators/articles/04_erik_naiman_herst.pdf (14.06.2017). 
4. Bibikov N.G., Ivanickij G.A. Modelirovanie spontannoj impul'sacii i kratkovremennoj adaptacii v voloknah sluhovogo nerva // Biofizika. 1985. T. 30. № 1. S. 141−144.
5. Bibikov N.G. Vydelenie amplitudno-modulirovannyh otrezkov v nepreryvnom tone nejronami sluhovoj sistemy ljagushki // Akusticheskij zhurnal. 1988. T. 34. № 2. S. 340−341.
6. Bibikov N.G. Processy adaptacii v nejronah sluhovoj sistemy ljagushki // Biofizika 2004. T. 49. № 1. S. 107−120.
7. Bibikov N.G. Nejrofiziologicheskie mehanizmy sluhovoj adaptacii. I. Adaptacija v techenie dejstvija stimula // Uspehi fiziologicheskih nauk. 2010. T. 41. № 3. S. 72−91. 
8. Dean I., Harper N.S., McAlpine D. Neural population coding of sound level adapts to stimulus statistics // Nature Neuroscience. 2005. V. 8. № 12. P. 1684–1689.
9. Dean I., Robinson B.L., Harper N.S., McAlpine D. Rapid neural adaptation to sound level statistics // Journal of Neuroscience. 2008. V.28. № 25. P. 6430–6438.
10. Chacron M.J., Longtin A., Maler L. Negative interspike interval correlations increase the neuronal сapacity for encoding time-varying stimuli // Journal of Neuroscience. 2001. V. 21. № 14. P. 5328–5343.
11. Lewis C. D., Gebber G. L., Larsen P. D. and Barman S.M. Long-term correlations in the spike trains of medullary sympathetic neurons // Journal of Neurophysiology. 2001. V. 85. № 4. P. 1614–1622.
12. Teich M.C., Lowen S.B. Fractal patterns in auditory nerve-spike trains // IEEE Eng. Med. Biol. 1994. V. 13. № 2. P. 197–202.