ArticleNeuroImage2026
Midfrontal theta power relates to response speeding following frustrative nonreward.
Article in NeuroImage, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
objectivesIrritability is a transdiagnostic symptom proposed to be characterized by maladaptive responses to frustrative nonreward (FNR), including heightened negative affect (i.e., frustration). Although FNR typically elicits adaptive behavioral adjustments, the neural mechanisms that support these adjustments and their trial-by-trial dynamics remain unexplored. Midfrontal theta power (MFθ), a key marker of expectancy violation and cognitive control, is a strong candidate for indexing these mechanisms and their role in supporting adaptive responses. We investigated how fluctuations in MFθ during FNR relate to subsequent behavioral adjustments and whether these associations are moderated by individual differences in irritability and state frustration.
methodsYoung adults (N = 91) completed a validated frustration paradigm and self-reported their irritability and state frustration. A multivariate approach was used to enhance the signal-to-noise ratio of single-trial MFθ. Linear mixed-effects models tested whether trial-by-trial MFθ and feedback type (win vs. FNR) predicted reaction time on the following trial.
resultsHigher MFθ following FNR feedback, but not win feedback, was associated with faster reaction times on the next trial, suggesting that theta oscillations support adaptive behavioral adjustments to unexpected reward loss. Reduced MFθ to FNR feedback was linked to greater self-reported frustration, while trait irritability and state frustration did not moderate the MFθ-behavior association.
conclusionMFθ increased following FNR feedback and predicted faster subsequent responses, highlighting its role in adaptive adjustment to frustrative outcomes. These findings enhance understanding of the neurocognitive mechanisms supporting coping with frustration and suggest this process may be less effective under heightened subjective frustration.
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