Table 1.

Overview studies

Study	Population	Cross-frequency coupling	Main finding
Robinson (2001)	Healthy	Delta-alpha	Lower coupling in individuals scoring high on extraversion and neuroticism
Knyazev and Slobodskaya (2003)	Healthy	Delta-alpha	Higher coupling associated with increased behavioral inhibition
Knyazev et al. (2003)	Healthy	Delta-alpha	Lower coupling associated with increased Extraversion and behavioural activation (BAS)
Schutter and van Honk (2004)	Healthy	Delta-beta	Reduced coupling after testosterone administration
Schutter and van Honk (2005)	Healthy	Delta-beta	Higher basal cortisol levels associated with increased coupling
Knyazev et al. (2005)	Healthy	Delta-beta	Increased coupling under situations of uncertainty
Knyazev et al. (2006)	Healthy	Delta-beta	Increased coupling during state anxiety
Knyazev and Slobodskoj-Plusnin (2007)	Healthy	Theta-gamma	Increased coupling under situation of reward in high BAS subjects
van Peer et al. (2008)	Healthy	Delta-beta	Increased coupling after cortisol administration
Miskovic and Schmidt (2009)	Healthy	Delta-beta	Higher basal testosterone levels associated with reduced coupling
Miskovic et al. (2009, 2011)	Patients	Delta-beta	Reduced coupling following successful behavioral therapy of social anxiety
Miskovic et al. (2010a)	Patients	Delta-beta	Increased coupling in children of parents with social phobia
Miskovic et al. (2010b)	Patients	Delta-beta	Increased coupling during speech anticipation in patients with social anxiety disorder
Velikova et al. (2010)	Patients	Delta-beta	Reduced coupling in patients with obsessive compulsive disorder
Knyazev (2011)	Healthy	Delta-beta	Increased coupling during state anxiety
Putman (2011)	Healthy	Delta-beta	Higher coupling associated with attentional bias towards threat
Schutter (2011)	Healthy	Delta-beta	Lower coupling associated with higher physical aggression scores