TABLE 5.

The top 10 keywords in occurrences frequency and centrality for research hotspots and trends of neuroimaging in SA.

Rank	Keywords	Frequency	Keywords	Centrality
1	Comorbidity	547	Amygdala	0.07
2	fMRI	365	Anterior cingulate cortex	0.06
3	Prefrontal cortex	291	Early childhood	0.06
4	Functional connectivity	235	Activation	0.06
5	Faces	222	Brain mapping	0.06
6	EEG	210	Brain cortex	0. 6
7	Behavioral inhibition	208	fMRI	0.05
8	Depression	192	EEG	0.05
9	Amygdala	178	Behavioral inhibition	0.05
10	Attentional bias	171	PET	0.05