Vestibular-emotional reflex

In the course of research ^[1], it was found that maintaining the vertical balance of the human head by the vestibular system can be considered as a function characterizing the vestibular reflex and, at the same time, as a special case of motor activity characterized by micromotion of the head. The analysis of micro head movements has a number of advantages for determining the state of a person in comparison with the analysis of other reflex movements. Head movements are one of the most frequently repeated movements that a person makes during his life. The child begins to hold his head, starting from the second month of life, then the vestibular system constantly maintains the vertical state of the head, moving it in space by hundreds of microns several times per second, resting only when a person is sleeping, or his head is leaning against some object.

From the point of view of biomechanics, mechanical vibrations of the head are a vibrational process , the parameters of which quantitatively characterize the relationship of energy and movement of the object. To obtain integral information about the parameters of head movement, vibration technology is used ^[2] , which allows you to quantify the relationship between mechanical movement and the psychophysiological state. Vibroimage is the primary form of the image, each point of which reflects the parameters of the object's motion. The vibroimage is similar to other biomedical types of human images (ultrasound, NMR, IR or X-ray image), each of which reflects certain physical properties. In this case, the vibration image also allows you to receive informative signals similar to the point methods of reading biomedical information - EEG, RAG, ECG signals. The famous Soviet psychophysiologist Nikolai Bernstein , who devoted almost his entire scientific life to the study of the physiology of motion and proposed the term biomechanics, found that every human movement is based on feedback and is discrete in time. The discreteness of movements established by him up to 0.1 s is confirmed by vestibulograms of the movement of the human head. Depending on the emotional and / or psychophysiological state of a person, the head of a person makes minor movements in space with a frequency of 1 to 10 Hz.

VER enables non-contact reading of the emotional and psychophysiological state of a person using standard television technology and vibration imaging technology, which is used in medicine, psychology, self-regulation, sports, etc. Certain applications of VER are associated with the possibility of covert monitoring of the condition, revealing aggressive and potentially dangerous people for various security systems ^[3] , primarily aviation security, as well as for lie detection. VER is no less informative indicator of the degree of arousal of a person than RAG, heart rate, blood pressure traditionally used in polygraphs .