. 2015 Apr-Jun;9(2):149–155. doi: 10.1590/1980-57642015DN92000009

Table 3.

Frequency of studies by number of domains used to evaluate executive functions in aging research.

Number of EF domains evaluated in study	Domain (number of studies)	Study references
1	planning (3) or mental flexibility (1)	^{1, 34, 47-48}
2	verbal fluency (4), mental flexibility (2), planning (2) and inhibitory control (2)	^{23, 32, 41, 44, 46}
3	working memory (7), mental flexibility (6), verbal fluency (4), planning (4), inhibitory control (4) and processing speed (2)	^{21, 29, 31, 35, 37, 39, 42-43,45}
4	working memory (5), mental flexibility (4), inhibitory control (4), verbal fluency (4), processing speed (3) and planning (3)	^{22, 30, 36, 38, 40, 49}
5	mental flexibility, verbal fluency, planning, working memory, processing speed	³³