Table 7.

Keywords each cluster information.

ClusterID	Size	Silhouette	Mean (Year)	Label (LLR)
0	35	0.874	2015	social cognition (94.55, 1.0E-4); borderline personality disorder (79.9, 1.0E-4); theory of mind (62.84, 1.0E-4); oxytocin (41.34, 1.0E-4); major depressive disorder (34.71, 1.0E-4)
1	35	0.976	2014	social anxiety (463.74, 1.0E-4); social anxiety disorder (191.56, 1.0E-4); fear of negative evaluation (129.35, 1.0E-4); fear of positive evaluation (94.48, 1.0E-4); measurement invariance (56.75, 1.0E-4)
2	33	0.973	2014	attentional bias (331.35, 1.0E-4); attention bias (232.22, 1.0E-4); interpretation bias (196.81, 1.0E-4); cognitive bias modification (188.11, 1.0E-4); attention bias modification (142.33, 1.0E-4)
3	32	1	2016	exposure therapy (250.58, 1.0E-4); virtual reality (217.51, 1.0E-4); randomized controlled trial (146.51, 1.0E-4); cognitive behavioral therapy (135.63, 1.0E-4); d-cycloserine (64.03, 1.0E-4)
4	31	0.963	2015	anxiety disorders (405.38, 1.0E-4); panic disorder (264.8, 1.0E-4); social anxiety (183.02, 1.0E-4); generalized anxiety disorder (153.06, 1.0E-4); posttraumatic stress disorder (104.09, 1.0E-4)
5	29	0.993	2016	anxiety sensitivity (186.51, 1.0E-4); positive affect (127.35, 1.0E-4); negative affect (82.31, 1.0E-4); autobiographical memory (52.05, 1.0E-4); working memory (24.69, 1.0E-4)
6	28	0.969	2017	eye tracking (68.94, 1.0E-4); internet addiction (65.16, 1.0E-4); repetitive negative thinking (49.37, 1.0E-4); negative evaluation (37.89, 1.0E-4); rumination (32.64, 1.0E-4)
7	28	1	2014	prevalence (145.13, 1.0E-4); comorbidity (123.97, 1.0E-4); anxiety disorder (85.98, 1.0E-4); mental disorders (80.31, 1.0E-4); substance use disorders (68.28, 1.0E-4)
8	27	1	2015	cognitive behavior therapy (92.51, 1.0E-4); post-event processing (55.08, 1.0E-4); systematic review (40.96, 1.0E-4); self help (35.55, 1.0E-4); meta -analysis (32.95, 1.0E-4)
9	26	0.955	2016	autism spectrum disorder (96.01, 1.0E-4); psychometric property (65.98, 1.0E-4); self report (44.94, 1.0E-4); scale (37.66, 1.0E-4); young people (34.02, 1.0E-4)
10	26	1	2016	eating disorders (283.08, 1.0E-4); anorexia nervosa (139.76, 1.0E-4); body image (115.57, 1.0E-4); body dysmorphic disorder (74.78, 1.0E-4); obsessive-compulsive disorder (64.86, 1.0E-4)
11	24	0.971	2016	prefrontal cortex (149.69, 1.0E-4); functional connectivity (142.63, 1.0E-4); amygdala (99.28, 1.0E-4); brain (72.97, 1.0E-4); fmri (69.53, 1.0E-4)
12	24	0.964	2016	behavioral inhibition (184.09, 1.0E-4); temperament (142.98, 1.0E-4); social avoidance (107.55, 1.0E-4); shyness (95.1, 1.0E-4); social withdrawal (69.69, 1.0E-4)
13	24	0.976	2014	facial expression (94.28, 1.0E-4); emotion (84.05, 1.0E-4); amygdala (77.24, 1.0E-4); sex differences (75.03, 1.0E-4); perception (64.87, 1.0E-4)
14	23	0.932	2015	quality of life (80.95, 1.0E-4); children (75.58, 1.0E-4); childhood (66.84, 1.0E-4); multiple informants (47.28, 1.0E-4); adolescents (41.9, 1.0E-4)
15	23	0.975	2015	symptoms (64.66, 1.0E-4); emotional disorders (35.9, 1.0E-4); reliability (31.36, 1.0E-4); population (27.37, 1.0E-4); impairment (22.55, 1.0E-4)
16	22	0.981	2016	internet gaming disorder (79.04, 1.0E-4); problematic internet use (62.92, 1.0E-4); internet addiction (61.21, 1.0E-4); loneliness (58.39, 1.0E-4); responses (52.48, 1.0E-4)
17	22	0.919	2015	peer victimization (139.4, 1.0E-4); victimization (59.25, 1.0E-4); bullying (49.3, 1.0E-4); follow up (43.55, 1.0E-4); experiences (37.73, 1.0E-4)
18	22	0.955	2015	emotion regulation (427.09, 1.0E-4); cognitive reappraisal (166.7, 1.0E-4); expressive suppression (119.25, 1.0E-4); reappraisal (76.77, 1.0E-4); individual differences (34.49, 1.0E-4)
19	22	0.902	2014	social skills (56.6, 1.0E-4); young adults (54.49, 1.0E-4); autism (36.05, 1.0E-4); autism spectrum disorders (29.36, 1.0E-4); social isolation (27.57, 1.0E-4)
20	21	0.982	2014	substance use (173.95, 1.0E-4); alcohol use (154.2, 1.0E-4); cannabis (131.5, 1.0E-4); alcohol (110.08, 1.0E-4); marijuana (98.36, 1.0E-4)