And whether you know...
January 14, 2012
The thalamus is area of a brain which is responsible for redistribution of the inforation received from sense bodys to a cerebral cortex (except for sense of smell). This information in the form of impulses comes to thalamus kernels which consist of the gray matter formed by neurons and are their accumulations.
In a thalamus allocate four kernels divided by white matter:
- Kernel of balance and sense of equilibrium
- Kernel of tactile information
- Kernel which redistributes acoustical information
- Group of neurons of visual information
Communication of specific kernels with the functions which are carried out by them easily is traced at electric stimulation of everyone them them.
As a result of receipt in a thalamus of any feeling, its preprocessing, that is understanding of a visual object, temperature, acoustical feelings, etc. begins. It is considered that this body also plays an important role in the course of storing, especially in the course of a long-term memory. Between bark and a thalamus signals are constantly transmitted: the thalamus excitingly affects bark which also excites a thalamus thanks to availability of returnable fibers. This communication allowed to assume that activation of such bonds provides long-term is rumpled through thought process. Fixing of information is as follows carried out: after excitement of peripheral receptors nervous impulses from them go conduction paths in a thalamus, and then and in cortical department of a brain. The highest synthesis of feelings is excited exactly there.
The disturbance of work of a thalamus caused by its damage can lead to an ecmnesia, that is posstravmatichesky, and also to become the tremor reason – a shiver of extremities when the person is at rest. A disease of this department of a brain can be also followed by spontaneous fits of laughter or shout.