Volume 33 #1

Contents

1. Analysis of sexual partner preferences in Eurydema ornata and E. oleracea in free choice context
2. Optimal affine approximation of image projective transformation
3. Recognition of projectively transformed planar figures XII. On new methods for projectively-invariant description of ovals in composition with a linear element of a plane
4. Edge detection based mobile robot indoor localization
5. Robust criterion for vanishing point estimation of linear trajectories of detected vehicles in a video stream
6. Matching SAR and optical images by independed referencing to a vector map
7. Increase of computational efficiency of projective image transformation on SIMD-architectures
8. Comparison of the classifying and similarity metric-based neural networks through the recognition of the filed “gender” in Russian Federation passport
9. Heartbeat-evoked responses on EEG in slow wave sleep in cats
10. Polysomnographic study of central sleep apnea in cats

Central sleep apnea syndrome is a reduction or a cessation of breathing during sleep induced by the command of breathing center (in brain stem) to the muscles. The issue whether Central Sleep Apnea is a pathological event that should be suppressed or it is an adaptive reaction of an organism is still actual. In the polysomnographic studies included EEG, ECG, Eye movements, air flow, stomach and duodenum myoelectric activity, temperature of brain and body in normal cats we often observed episodes of Central Sleep Apnea. The absence of breathing (for 9-13 seconds) generally performs in REM- sleep and in the transition states (from Slow-wave to REM sleep). All episodes of apnea were followed by stereotypic complex of reactions of all parameters recorded in our study. In the context of investigated visceral theory of sleep this complex of events followed the Central Apnea most likely is coordinated physiological adaptive function important for the recovering of organism.

Key words: sleep, visceral theory of sleep, polysomnography, sleep-related breathing disorders, central sleep apnea

DOI: 10.1134/S0235009219010098

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