Electroencephalographic Correlates of Obsessive-Compulsive Disorder

Souza, Ana Maria Frota Lisboa Pereira de

doi:10.1007/7854_2020_200

Cited by 1 publication

(1 citation statement)

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“…Indeed, individuals with greater error‐related beta also had longer RTs on trials that followed the commission of an error (i.e., post‐error trials). Future studies should be designed to explore the link between beta power and other ERPs associated with action preparation, such as the lateralized readiness potential (Dayan et al, 2014, 2017; Frota Lisbôa Pereira de Souza, 2021; Morand‐Beaulieu et al, 2021; Schurger et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Error‐related brain activity: A time‐domain and time‐frequency investigation in pediatric obsessive–compulsive disorder

et al. 2022

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Increased error-related negativity (ERN), a measure of error monitoring, has been suggested as a biomarker of obsessive-compulsive disorder (OCD). Additional insight into error monitoring is possible using time-frequency decomposition of electroencephalographic (EEG) data, as it allows disentangling the brain's parallel processing of information. Greater error-related theta is thought to reflect an error detection signal, while delta activity may reflect more elaborative post-detection processes (i.e., strategic adjustments). Recent investigations show that decreased error-related alpha may index attentional engagement following errors; additionally, increases and decreases in error-related beta could reflect motor inhibition and motor preparation, respectively. However, time-frequency dynamics of error monitoring in OCD are largely unknown. The present study examined time-frequency theta, delta, alpha and beta power in early adolescents with OCD using a data-driven, cluster-based approach. The aim was to explore electrocortical measures of error monitoring in early adolescents with (n = 27, 15 females) and without OCD (n = 27, 14 females) during an arrowhead version

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