Attentional Precursors of Errors Predict Error-Related Brain Activity

Area of Science:

• Cognitive Neuroscience
• Neuroscience
• Psychology

Background:

• The error-related negativity (Ne/ERN) signals the need for behavioral adjustments after errors.
• How the brain selects specific post-error adjustments based on error type is unclear.
• Error precursors may inform the error monitoring system to tailor responses.

Purpose of the Study:

• To investigate if alpha oscillations, reflecting spatial attention, act as an error precursor.
• To determine if this precursor scales the Ne/ERN signal.
• To examine if the Ne/ERN influences subsequent attentional adjustments.

Main Methods:

• Participants performed a visual task requiring attention to one hemifield and ignoring a distractor.
• Posterior alpha asymmetry was measured as an indicator of spatial attention misallocation.
• The relationship between alpha asymmetry, Ne/ERN amplitude, and subsequent trial adjustments was analyzed.

Main Results:

• Alpha asymmetry reversal predicted the Ne/ERN on error trials, indicating attention misallocation.
• The Ne/ERN amplitude predicted subsequent alpha asymmetry, suggesting a shift of attention away from the distractor.
• These findings support the scaling of Ne/ERN by error precursor strength.

Conclusions:

• The error monitoring system utilizes spatial attention misallocation as an error precursor.
• This mechanism allows for scaling the Ne/ERN to guide appropriate post-error behavioral adjustments.
• This extends current theories by incorporating specific error source monitoring into error processing.