Executive functions

Executive function refers to a set of higher cognitive abilities that control and regulate other basic abilities like attention, memory, and motor skills. Executive functions may involve the ability to engage in goal-directed behaviors and abstract thinking. Executive function impairments can be measured by assessing diverse domains such as planning, sequencing, self-monitoring, set-shifting, verbal fluency, abstract reasoning, working memory, visual-spatial organization, and memory [50-52].

Many studies have examined disturbances in executive function in OSA, demonstrating impairment in several domains. For example, Bedard and colleagues reported widespread deficits in various executive functions (verbal fluency, planning, sequential thinking, and constructional ability), with extent of impairment related to severity of the breathing abnormality [34,53].

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