M. : Science, 1976. 136 s. The book examines the methods developed by the author to study some vegetative phenomena, the activity of the nervous system, the emotional state and behavior of dogs. Sleep, postures, movements, and sounds are used as indicators of their state. Many phenomena are described, systematized and quantified. Various ways to train dogs to be in cabins, the impact on animals of these conditions, the impact of overloads, vibrations, space flights and other extreme factors are shown. The phenomena typical for such impacts are discussed, an attempt is made to isolate the factors of leading importance. The book is designed for researchers-physiologists working with dogs, biologists, ethologists, psychologists.