Mesoarchecortics is a substructure of a large (cerebral cortex) cortical field located between the marginal surface of the cerebrum and the Sylvian fissure. It includes areas responsible for: smell, hearing, speech, vision, attention and emotional response. The mesoarchicortex is also called the precentral gyrus or precortex because it is the outermost portion of the cerebral hemispheres.
The function of this part of the brain is to facilitate communication between the brain and the body. This is where sensory information is processed and motor functions are regulated. Mesoarchikuratx plays an important role in the control of emotions, attention, perception and speech, in processing information about what we see, hear and how we act. Processes such as attention refer to the formation of conscious coordination between the various objects of our attention. We divide events in the environment into those that we want to bring to our attention and those on which our attention is already focused. Depending on how strongly we focus our attention on a particular object, we can exert additional control over it, or through expansion or contraction of attention, improve our perception and processing of information about that object.