Alpha Oscillations in Resisting Distraction

Abstract

The role of alpha oscillations (8-13Hz) in suppressing distractors and optimizing the processing of task-relevant information has been extensively debated. Evidence supporting alpha increase as a mechanism for distractor suppression includes studies showing alpha power increases in brain regions processing unattended locations and features, as well as the correlation between stronger alpha power and better task performance or lower neuronal excitability. However, conflicting results have been reported, with some studies failing to find these effects. Methodological and conceptual differences, such as experimental design and sub-optimal alpha power detection, may contribute to these discrepancies. Furthermore, there may be alternative mechanisms, beyond alpha-based gain modulation, involved in preventing distraction, such as inhibition processes in parietal and ventral attention networks. Future research should consider these factors and investigate the specific contexts and mechanisms associated with alpha oscillations and distractor suppression