Executive function is the domain of high-level cognitive processes that assists in goal-oriented tasks, such as problem solving, mental flexibility, attentional control, inhibitory control, and task switching. Much of the current research on cognitive effects of bilingualism investigate a correlation between bilingualism and executive function. A study titled "Bilingualism, aging, and cognitive control" amongst various similarly conducted studies released data suggesting that monolinguals and bilinguals were found having varying ability in the executive function part of the brain. From these tests, bilinguals showed a higher executive control than their monolingual peers. When matched in age and other background factors (e.g. socio-economic status), indications of a possible correlation between the demands on the brain that learning multiple languages requires and higher executive functioning skills. Executive function may also have effects for older adults. Inhibitory processes of adults who learned a second language at a young age show better controlled processing than monolingual adults. Reported links to slowing age-related cognitive decline such as dementia have been found. Results of a bilingual advantage in executive functioning have been mixed, with many studies and meta-analyses coming to opposite conclusions.