The area of the brain which has a damage is the reticular[L1]
formation. You can find the reticular formation
in the brainstem, it is a set of interconnected nuclei. The reticular formation
is not anatomically well defined because it includes neurons located in diverse
parts of the brain. In medulla oblongata in the lower part to the upper part of
midbrain it stretches in the core of the brainstem, neurons of the reticular
formation made up of complex set of networks.
