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A primary goal of the course is to gain understanding of how orally transmitted poetry differs from learned poetry and how it has adapted over time and space , thereby retaining its relevancy among traditional societies ( for whom ballads provide a means of addressing conflictive human situations ) . The length of the cochlear aqueduct and the presence of arachnoid within its lumen tend to dampen the effects of sudden pressure changes in the subarachnoid space , thereby protecting the inner ear from rapid pressure changes . The image shows a decrease in the MDMA user 's ability to remove the important neurotransmitter serotonin from the brain 's intercellular space , thereby amplifying its effects within the brain . Sensitivity to the inextricably close links between the integrative and disintegrative forces at work in communities at all levels of aggregation has its roots in those technologies that have collapsed time and space , thereby rendering underlying socioeconomic and political processes more visible .