Reflex Fusion

The fusional reflex is a protective reflex act based on the combination of visual and tactile signals. It is formed as a result of the reflection of two-object realistic connections carried out by the leading analyzer, primarily through the visual analyzer. The initial condition for the reflex act of fusilization is the selection of a paired stimulus by the object. By recognizing a paired object, the visual analyzer gives a signal that it is one whole. Thus, the object is perceived as represented as a part separated along the plane in one image.

Reflexes are automatic, unconscious actions of the body and its parts in response to various stimuli. The action develops quickly and is innate, and is often accompanied by perceptions of the external environment (for example, defensive or evaluative reactions, food-procuring and defensive behavior). The reflex ring consists of receptors that perceive irritation, a conductive part through which information is transmitted from the receptor to the nerve centers, and an effector part (center and organ) through which the response is carried out. Some of the anatomical and physiological functions of the body are realized precisely by reflexes.

Reflexes of humans and animals can be divided into several types:

1. Stepping - occur when maintaining balance, when gravity acts unevenly over a large area of ​​support. For example, a person is walking or standing. 2. Statokinetic - maintained by maintaining a horizontal position of the head, visual images or body position, i.e. adequate performance of movements by a person or animal. They occur in conditions of alternating gravity, for example, when a person runs or rolls over to the other side. 3. Indicative-exploratory or exploratory - allow you to clarify the features of the environment before the start of targeted motor activity. With their help, new levels of behavior regulation are created. For example, if a person encounters a deep hole in an unfamiliar area, but there is a path, he will follow it, guided by changes in soil levels, sidewalk curbs and other signs. 4. Development of flexibility, coordination of movements, sense of balance. Solving these problems requires, when making movements, matching the speed, direction and amplitude of movements of physical objects. The appropriate interaction of muscles is worked out. A person must correctly distribute the load between them. If you repeat the movement correctly once, you no longer need to correct it. This is what coordination is all about. At the same time, the strength and mobility of the nerve centers are improved.

There are a great many reflexes in the world that participate in our lives every day. The fusion reflex is no exception. It plays an important role in our entire life, from our birth to our death. But what are fusion reflexes and how do they work? Today we will look into this topic.

1. What are fusion reflexes? Fusional reflexes are physiological functions of the nervous system that connect and coordinate two or more sensory systems, such as vision and hearing. These reflexes are also involved in depth perception, spatial orientation, concentration, etc.

Here are examples of fusion reflexes:

* Instant visual substitution - for example, a person sees a moving object (horse, car) in the water. Paying attention to the water and the image of the horse, we see a cat in an aquarium. Instantly the image is transformed into another. * Cross overlap - when two senses are combined to create a complex perception, and if the combination is complex, there is an alternating effect of 2 visual signals. For example, when images of opposite colors are superimposed or when 2 objects are perceived as a single whole. * Categorization - the brain works a little more intensely to recognize images that differ in objects. If in one part of the cinema there is a car, then in another part there is exactly the same, but “taxi”. In this case, the brain can distinguish one object from another. This is where categorization comes into play. This is especially important for determining the focus of attention. The more accurately he manages to determine the priority signal at a given time, the better the brain functions as a whole.

It’s not for nothing that such a huge block of reflexes is called fusional, because their main principle of interaction is the merging of several signals into one