title: EEG theta/beta ratio in relation to fear-modulated response-inhibition, attentional control, and affective traits.
abstract: Power density-ratios of fast and slow frequency spectrum-bands can be calculated from resting-state electroencephalography (EEG) recordings. A well-established phenomenon is that slow wave/fast wave ratios (SW/FW) are increased in attention-deficit/hyperactivity disorder. Several researchers have also begun to study relationships between SW/FW and affect. This work suggests that increased SW/FW may reflect reduced frontal cortical control over subcortical affective approach drive. The present study (n=28) aimed to further examine this notion by testing several predictions derived from it. In line with these predictions, SW/FW was found to correlate negatively with fearful modulation of response inhibition in an emotional go/no-go task and with self-reported attentional control. Results also suggested a positive relation between SW/FW and trait approach motivation and a negative relation to anxiety, as predicted. These results are consistent with previous studies and support the notion that SW/FW may provide a useful tool in the study of affect and emotion regulation.
authors.affiliation: Leiden University, Institute of Psychology, 2300 RB Leiden, The Netherlands. PPutman@FSW.leidenuniv.nl
authors.forename: Peter
authors.initials: P
authors.lastname: Putman
authors.forename: Jacobien
authors.initials: J
authors.lastname: van Peer
authors.forename: Ioulia
authors.initials: I
authors.lastname: Maimari
authors.forename: Steven
authors.initials: S
authors.lastname: van der Werff
mesh_terms: D000328:Adult; D000339:Affect; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000503:physiopathology*; D001611:Beta Rhythm; D004569:Electroencephalography; D005149:Facial Expression; D005239:Fear; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology; D006801:Humans; D007266:Inhibition, Psychological; D011930:Reaction Time; D020377:Self Efficacy; D012927:Social Control, Informal; D013826:Theta Rhythm