Cough Suppressants or «Anti Tussives» are those medicines used to suppress or reduce cough by different means, such as by acting on the «cough center» in back of the brain. (dog-health-handbook.com)
In particular, theta activity increased at the junction of three brain areas: the parietal region, just behind the crown of the head, which perceives sensory information and integrates it into the mysterious state called consciousness; the temporal lobe, behind the temples and responsible for making sense of sound; and the occipital lobe, located at the bottom back of the brain and responsible for processing vision. (scientificamerican.com)
Most visual processing occurs in the back of the brain, which is why we see «stars» when we receive a blow to the back of the head. (religion-online.org)