Every moment a person perceives informationfrom the environment through a special system called the "analyzer". It includes several components, whose activities are closely interrelated.
Biologically speaking, analyzers are calledall human sensory systems. These are physiological devices that are capable of perceiving various types of energy, which later turn into nerve impulses. As a rule, each of the analyzers perceives only a certain type of information. In humans, they are represented by five sensory systems: visual, auditory, olfactory, tactile and gustatory. There is an opinion about the presence of the "sixth sense" - intuition. However, until now, scientists have not established its mechanism of action and features of the organization. The concept of "analyzer" includes the following components: peripheral, conductor and central section. Consider the features of each of them.
Each sensory system is capable of perceiving andanalyze only certain information. Although, of course, there are mixed feelings. The concept of "analyzer" includes the following components, which are represented by a variety of stimuli. Their main feature is a high level of specificity. This means that their effect applies only to a certain type of analyzer.
So, the concept of "analyzer" includes the followingcomponents: receptor and information transfer system. The initial section of any sensory system consists of sensitive cells. They are able to perceive different types of energy. Later they are transformed into nerve impulses. It is in this form that information is transmitted to subsequent departments and processed. Depending on the type of energy, there are several types of receptors. They are able to perceive light radiation, vibrations of air, touch, the action of chemicals.
The wiring part of the sensory systems consists ofnerve fibers that transmit electrical impulse. This is the second section, which includes the concept of "analyzer". The following components are directly involved in processing the information received.
The term "analyzer" includes the followingcomponents of the central part: the subcortical centers and departments of a final brain. This is where the synthesis and analysis of excitation. As a result, the corresponding reactions of the organism are formed, information about which is transmitted through the nerve fibers back to the working organ.
Despite the variety of sensory systems, they havethere are common signs. One of them is adaptation, which consists in their ability to adapt to different intensity of action of the stimulus. If it acts stronger, the sensitivity of the receptors increases, and vice versa. For example, a visual sensory system is able to perceive equally well the image of objects at different distances. This ability is called accommodation. Also, the eye is able to adapt to the dark or bright light.
So, the concept of "analyzer" includes the followingcomponents: peripheral, conductor and central departments. In this sequence, they perceive various types of information from the environment, convert it into nerve impulses and transmit to the appropriate parts of the brain. Here, information is analyzed, a response is formed, so that the body is quickly oriented in a constantly changing external environment.
