Search Results - "Lyamin, O I"

Sleep behaviour Sleep in continuously active dolphins; Activity and sleep in dolphins (Reply) by Siegel, J. M, Lyamin, O. I, Pryaslova, J, Lance, V

“…All terrestrial mammals studied so far do maximal amounts of sleeping at birth, with sleep time gradually decreasing to adult levels. This has led to the…”
Get full text

Evaluation of the ability of northern fur seals to perceive and visually discriminate images under the conditions of sleep loss by Lyamin, O. I., Korneva, S. M., Obukhova, E. D., Mukhametov, L. M., Siegel, J. M.

“…This is the first study estimating the ability of sea mammals to perceive and analyze information under the conditions of an almost complete sleep deprivation…”
Get full text

Evaluation of an Instrumental Method of Classification of Beluga (Delphinapterus leucas) Behaviors Based on the Parameters of Acceleration by Lyamin, O. I., Nazarenko, E. A., Rozhnov, V. V.

“…A noninvasive instrumental method of classification the behavior of the beluga whale (Delphinapterus leucas) based on the parameters of movement was evaluated…”
Get full text

Sleep with Open Eyes in Two Species of Deer, the Indian Sambar (Rusa unicolor) and Sika Deer (Cervus nippon) by Lyamin, O. I., Siegel, J. M., Nazarenko, E. A., Vu, Manh, Rozhnov, V. V.

“…The relationship between postures, sleep stages and eye state was established in two species of deer, the Indian sambar ( Rusa unicolor ) and sika deer (…”
Get full text

Unihemispheric slow wave sleep and the state of the eyes in a white whale by Lyamin, O.I, Mukhametov, L.M, Siegel, J.M, Nazarenko, E.A, Polyakova, I.G, Shpak, O.V

“…We recorded electroencephalogram (EEG) and simultaneously documented the state of both eyelids during sleep and wakefulness in a sub-adult male white whale…”
Get full text

Study of sleep in a walrus by Lyamin, O. I., Kosenko, P. O., Vyssotski, A. L., Lapierre, J. L., Siegel, J. M., Mukhametov, L. M.

“…Several behavioral and physiological adaptations have been developed in evolution of Pinnipeds allowing them to sleep both on land and in water. To date sleep…”
Get full text

Characteristics of Sleep–Wakefulness Cycle and Circadian Activity in the Lesser Mouse-Deer (Tragulus kanchil) by Lyamin, O. I., Siegel, J. M., Evsigneev, R. V., Nazarenko, E. A., Rozhnov, V. V.

“…The pattern of sleep and circadian activity of the lesser mouse-deer ( Tragulus kanchil ) that is the smallest (body mass between 1.5 and 2.2 kg)…”
Get full text

States of rest and activity in the Commerson's dolphin Cephalorhynchus commersonii by Shpak, O. V, Lyamin, O. I, Manger, P. R, Siegel, J. M, Mukhametov, L. M

“…The unihemispheric slow-wave sleep, the ability to sleep during swimming with one open eye and the absence of paradoxical sleep in its form observed in all…”
Get full text

Muscle jerks during behavioral sleep in a beluga whale ( Delphinapterus leucas L.) by Lyamin, O.I, Shpak, O.V, Nazarenko, E.A, Mukhametov, L.M

“…We conducted video recording of the behavior of one captive adult male beluga (or white) whale over eight nights aiming to quantify muscle jerks and to…”
Get full text

Lateralized behavior in northern fur seals by Pryaslova, Yu. P., Lyamin, O. I., Mukhametov, L. M.

Get full text

Spectral analysis of heart rate variability in the beluga (Delphinapterus leucas) during exposure to acoustic noise by Bakhchina, A. V., Mukhametov, L. M., Rozhnov, V. V., Lyamin, O. I.

“…The spectral parameters of heart rate variability are a measure of activation of the sympathetic and parasympathetic branches of the mammalian autonomic…”
Get full text

Rest and activity states in a gray whale by Lyamin, O I, Manger, P R, Mukhametov, L M, Siegel, J M, Shpak, O V

“…The behaviour of a female gray whale (Eschrichtius robustus) that had been rescued 14 months previously was recorded continuously on a video‐recorder for 9…”
Get full text

State-related discharge of neurons in the brainstem of freely moving box turtles, Terrapene carolina major by Eiland, M M, Lyamin, O I, Siegel, J M

“…We have performed the first study of neuronal activity in freely-moving reptiles. 23 brainstem units were recorded from areas throughout the reticular…”
Get more information

Cardiorespiratory changes in beluga in response to acoustic noise by Lyamin, O. I., Korneva, S. M., Rozhnov, V. V., Mukhametov, L. M.

Get full text

Unilateral EEG activation during sleep in the Cape fur seal, Arctocephalus pusillus by Lyamin, O I, Chetyrbok, I S

“…Sleep and wakefulness on the land were studied electrophysiologically in one adult female Cape fur seal (Arctocephalus pusillus). In two 24-h sessions,…”
Get more information

Relationship between sleep and eye state in Cetaceans and Pinnipeds by Lyamin, O I, Mukhametov, L M, Siegel, J M

“…We recorded EEG from both hemispheres and documented the state of the two eyes in two species of Cetaceans (one beluga and one bottlenose dolphin) and one…”
Get more information

Sleep in an Amazonian manatee, Trichechus inunguis by Mukhametov, L M, Lyamin, O I, Chetyrbok, I S, Vassilyev, A A, Diaz, R P

“…For the first time, sleep was studied in a representative of the order of Sirenia. Slow wave sleep occupied 27%, and paradoxical sleep 1% of the total…”
Get full text

Interhemispheric asynchrony of the sleep EEG in northern fur seals by Mukhametov, L M, Lyamin, O I, Polyakova, I G

“…In northern fur seals the two brain hemispheres can generate the EEG slow waves during sleep not only simultaneously, as in all the terrestrial mammals…”
Get full text

SPECTRAL ANALYSIS OF HEART RATE VARIABILITY IN THE BELUGA DELPHINAPTERUS LEUCAS DURING EXPOSURE TO ACOUSTIC NOISE by Bakhchina, A V, Mukhametov, L M, Rozhnov, V V, Lyamin, O I

Get more information

Sleep in continuously active dolphins; Activity and sleep in dolphins (Reply) by Lyamin, O. I., Pryaslova, J., Lance, V., Siegel, J. M.

Get full text