Videoecology is a new scientific direction deals with ecology of visual environment and a beauty
More information
The concept on automaticity of saccades is the basis of videoecology.
More information
Theoretical and practical problems of videoecology are worked out in Moscow centre "Videoecology"
More information
The full concept of saccades automaticity is set out in V.A.Filin's monographs "Videoecology", in Russian (3 editions) and in English and "Automaticity of saccades", in Russian
More information
Main page --> Automaticity of saccades --> Automaticity of saccades and a sleep

Above we have reviewed examples of a functional role of saccadic automaticity under wake. However, our investigations showed that during sleep the number of saccades remains the same as under wake. Why are saccades needed if the eyes are closed and there is no necessity to see either a visual picture or compensate defects of a sensor apparatus? Of course, it is convenient for clinicians to identify sleep phases according to presence or absence of saccades, as just because of them they accurately define the stage of sleep named as the phase of a rapid eye movement (RYM). But evidently the Nature in a less degree was interested in a medical practice as the nature had more serious tasks. Which are they?

We have all grounds to think that saccadic automaticity can be regarded as an "antimonopoly mechanism". Saccade is not large in amplitude but its excitation wave runs through all brain structures up to the cortex. It happens every half second and every time the excitation wave penetrating through nervous structures breaks off the links established between nervous cells under wake. Due to that saccades destroy reverberating links and prevent from consolidation of nervous cells into large structures which could dominate at the moment. The latter is extremely important for the whole organism as consolidation of nervous cells into large systems when excited synchronously can lead to epileptic seizure.

We named this saccadic function "antimonopoly" by analogy with principles of a market economy. Just as in economics antimonopoly committees do not give a chance to separate concerns to dictate their conditions to the whole industry, the saccades "deprive of rights" separate brain structures "to impose their will" on other structures. This is one more example of the work of large systems according to general laws: let it be biological or social systems. What is good for the brain as a system, a discrete element of which is a nervous cell, is good for the economy of the country, a discrete element of which is an individual person.

During slow sleep stage when there are no saccades and "antimonopoly mechanism" does not work, nervous cells can easily integrate into large groups. Clinicians know well that just at that stage of sleep very often epileptic seizures happen. It means that integration of nervous cells reached a critical value. "Antimonopoly" mechanism of saccadic automaticity can work not only during sleep but under wake as well.

While studying that process we noted the decrease of visual fatigue in computer operators when they for some time were tracing a moving spot on the screen. That procedure resulted in increase of saccades and their amplitude, which in its turn destroyed the links established during intensive visual work. It is possible that an operator anticipating an epileptic seizure could weaken the seizure or even avoid it by arbitrary increase of saccades shifting the gaze from one object to another or moving the eyes to the right and to the left.

Additional information
Videoecology Videoecology is the science of interaction between a human being and visual environment
More information
Doctor of biology, academician of International Academy of sciences Vasiliy A. Filin is the founder of the videoecology as a science .
More information
Visual environment is all we perceive by organ of vision, in other words it is all we look at by our eyes
More information

Rambler's Top100
веб дизайндизайн-студия АРТ Copyright © 2002-2009 Moscow Centre "Videoecology"
Рус | Eng