Trait anxiety impact on posterior activation asymmetries at rest and during evoked negative emotions: EEG investigation

Афтанас, Л. И.; Павлов, С. В.

doi:10.1016/j.ijpsycho.2004.06.004

Cited by 36 publications

(20 citation statements)

References 60 publications

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“…Increased theta in OCD is a robust finding (Karadag et al, 2003;Perros, Young, Ritson, Price & Mann, 1992;Velikova et al, 2010) and the regions of activation are consistent with OCD imaging studies (Rotge et al, 2008), suggesting the activation of OCD-related circuitry. However, a more parsimonious explanation may be that this reflects greater anxiety (Aftanas & Pavlov, 2005) or more vivid imagery (Addis, Wong & Schacter et al, 2007;Weiler, Suchan & Daum, 2010).…”

Section: Discussionmentioning

confidence: 99%

Alpha activity in the insula accompanies the urge to neutralize in sub-clinical obsessive-compulsive participants

Jones¹,

Bhattacharya²

2012

Journal of Behavioral Addictions

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Background and aims:The behavioural addiction model of obsessive-compulsive disorder (OCD) proposes that as compulsions successfully reduce obsession-provoked anxiety in the early stages of the disorder, their performance is rewarding and therefore potentially addictive. According to this theory, the urge to perform a compulsion or neutralization resembles craving in addiction, and ventral fronto-striatal reward circuitry is activated during compulsive or neutralizing behaviour, resembling substance addiction disorders. The current study used EEG source localisation to test this hypothesis by examining brain activity accompanying the urge to neutralize and covert neutralization. Methods: Two groups of non-clinical participants (15 Low-OC, 15 High-OC) performed a task in which the urge to neutralize was induced by supplying participants with an obsessive-compulsive-like thought. Source localised EEG activity was compared between a negative condition with high urge to neutralize, and a positive condition with low urge to neutralize, and correlations between brain activity and self-reported urge to neutralize were examined. Results: High-OC participants reported a significantly greater urge to neutralize than Low-OC participants, and the majority of participants reported performing covert neutralization during the experiment. Between-condition comparisons in the High-OC group revealed significantly greater alpha activity in the insula and vlPFC in the negative than the positive condition, which was significantly correlated with both urge to neutralize and later decrease in negative affect. Conclusions: The current results support the proposal that the urge to neutralize in OCD is neurally similar to craving in substance addiction, in agreement with the behavioural addiction model of OCD.

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Section: Discussionmentioning

confidence: 99%

Alpha activity in the insula accompanies the urge to neutralize in sub-clinical obsessive-compulsive participants

Jones¹,

Bhattacharya²

2012

Journal of Behavioral Addictions

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“…Future studies should consider recording event-related brain responses in order to better characterize the neural bases of emotional attention biases. Additionally, while the present study focused on patterns of frontal EEG alpha asymmetry, some investigators have begun to employ whole spectrum EEG analyses to examine the multiple ways in which patterns of brain electrical activity predict individual differences in evaluative processing (Aftanas and Pavlov, 2005;Aftanas et al, 2003;Knyazev et al, 2008aKnyazev et al, ,b, 2005.…”

Section: Discussionmentioning

confidence: 99%

Frontal brain electrical asymmetry and cardiac vagal tone predict biased attention to social threat

Miskovic¹,

Schmidt²

2010

International Journal of Psychophysiology

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“…Studies exclusively reporting results on the genetic basis of reinforcement sensitivity or biopsychological variables (k = 15) were also excluded (e.g., Aftanas & Pavlov, 2005;Barros-Loscertales et al, 2006;Bartussek, Becker, Diedrich, Naumann, & Maier, 1996;DePascalis, Arwari, Matteucci, & Mazzocco, 2005;DePascalis & Speranza, 2000;Hemming, 1979;Martin & Potts, 2004;Reuter et al, 2004;Reuter et al, 2006). These studies either did not apply reinforcement tasks to investigate individual differences of reinforcement sensitivity or did not report results on RST-related personality differences.…”

Section: Exclusion Of Studiesmentioning

confidence: 99%

A Meta-Analysis of Reinforcement Sensitivity Theory: On Performance Parameters in Reinforcement Tasks

Leue

Beauducel

2008

Pers Soc Psychol Rev

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J. A. Gray's Reinforcement Sensitivity Theory (RST) has produced a wealth of quasi-experimental studies in more than 35 years of research on personality and reinforcement sensitivity. The present meta-analysis builds on this literature by investigating RST in conflict and nonconflict reinforcement tasks in humans. Based on random-effects meta-analysis, we confirmed RST predictions of performance parameters (e.g., number of responses, reaction time) in reinforcement tasks for impulsivity- and anxiety-related traits. In studies on anxiety-related traits, the effect size variance was smaller for conflict tasks than for nonconflict tasks. A larger mean effect size and a larger variability of effect sizes were found for conflict compared to nonconflict tasks in studies on impulsivity-related traits. Our results suggest that problems with RST confirmation in reinforcement tasks are at least partly caused by insufficient statistical power of primary studies, and thus, encourage future research on RST.

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Trait anxiety impact on posterior activation asymmetries at rest and during evoked negative emotions: EEG investigation

Cited by 36 publications

References 60 publications

Alpha activity in the insula accompanies the urge to neutralize in sub-clinical obsessive-compulsive participants

Alpha activity in the insula accompanies the urge to neutralize in sub-clinical obsessive-compulsive participants

Frontal brain electrical asymmetry and cardiac vagal tone predict biased attention to social threat

A Meta-Analysis of Reinforcement Sensitivity Theory: On Performance Parameters in Reinforcement Tasks

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