REGENERATION AFTER A STROKE

Regeneration after a Stroke Requires Intact Communication Channels Between Brain Hemispheres

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Regeneration after a Stroke Requires Intact Communication Channels Between Brain Hemispheres

Introduction

The patient recovery after a stroke is dependent on the quality of information exchange between the two brain hemispheres. The muscles on the left side are control by the right side of the brain; whereas, the muscles on the right side of the body are controlled by the left side of the brain that means the information from the left side of a body goes to the right side of the brain. On the contrary, the information from the right side of the body goes to the left side of the brain. This shows that the damage on the left side of the brain will affect the right side of the body and vice versa.

The most common effect after stoke is the problem in communication. For instance, the person may not be able to understand or speak, as well as also affect its ability to read and write. Mainly because, Pons is a fraction of the hindbrain that connects medulla oblongata medulla with the cerebral cortex and serves as a coordination and communication point between right and left hemispheres of the brain. Pons helps in the message transformation between different parts of the brain and the spinal cord.

The aim of this paper is critically reviewed Max Planck Gesellschaft article and testifies their contribution of how Corpus Callosum degeneration and Motor function recover after stroke.

Discussion

Max Planck Gesellschaft conducted a study, in which 18 patients were examined after stroke of age ranged from 27 to 74; however, 10 patients were affected on the left hand and 8 were on the right side. They observed the movement of the index finger of stroke patients on four design matrix that are affected (right) index finger movement, unaffected (left) index finger movement, instruct to move the affected (right) index finger and instruct to move the unaffected (left) index finger (Wang, et. al., 2011).

In order to record the activity of the brain they requested patients suffering from stroke to make tapping movements of the index finger on the affected side and noted the functional magnetic images resonance. Later on, the data of stroke patients were compared with the data of healthy individuals. The findings demonstrate that the stroke patient had a lower tapping speed as compared with the healthy individuals and increase in the activity of the brain was reported in the stroke patients on both hemispheres of the brain. This increased brain activity in the healthy hemisphere of the brain is because of the damaged processing of motor programs between the two hemispheres of the brain (Max-Planck-Gesellschaft, 2011).

In order to, test the changes in white matter diffusivity are related with motor deficits and functional reorganization within the system of cortical motor in stroke patients, under MRI (dMRI) and fMRI. The abnormalities of the white matter are caused in the corpus callosum because of the ...