According to the result of Fig. 5, the male group presents stronger connections in the dorsolateral PFC regions (BA 10, BA 46, and BA 9) that are associated with brain function of memory, particularly working memory, and memory control and organization. Conversely, the female group shows the stronger connections in the inferior PFC regions (BA 44, BA 45). It is interesting to note that the BA 44 and 45 of left PFC are called Broca’s area that possesses strong correlation of speech-language. Thus, our results might help to explain females perform better in verbal memory, verbal fluency tasks, and speed of articulation [46, 47]. Contrarily, males perform batter in quantitative problem solving, and mental rotation, or tasks involving the underlying cognitive processes of maintaining and manipulating a visual image in working memory [48]. The observance of leftward dominance of inferior PFC in male group and bilateral dominance in female group during resting-state may help to explain the finding from previous fMRI study [4] that indicated the phonological processing aroused activation in the left inferior PFC in male but the bilateral
