A recent study by Ju et al. (2012), conducted at the sleep laboratory at Seoul National University Bundang Hospital, aimed to fill this gap. They accomplished this by looking at cognitively healthy elderly people with and without SAS and compared the cognitive abilities between the two. Specifically, they wanted to determine the outcome of SAS on elderly individuals who are free of any cognitive impairment and therefore those with dementia or any other cognitive disorders were not involved in this …show more content…
AHI is a measure of how many times in one hour a person stops breathing or has shallow breathing during sleep. In order to determine AHI, a nocturnal polysomnography, or sleep test was conducted. They also used the sleep test to determine oxygen desaturation index (ODI) which is the found by looking at how many times during one hour of sleep the body’s oxygen levels are lowered by 4% or more. Following the sleep test, participants were assessed for their cognitive abilities as well as mood, daytime sleepiness and sleep disturbances through a series of cognitive