Response accuracy rating modulates ERN and Pe amplitudes.

Area of Science:

• Cognitive Neuroscience
• Psychophysiology

Background:

• Response accuracy ratings are frequently used to assess performance monitoring and error awareness via electroencephalography (EEG) correlates.
• The impact of the rating process itself on these EEG measures remains largely unexamined.

Purpose of the Study:

• To investigate whether the act of rating response correctness influences EEG correlates of performance monitoring.
• To determine if accuracy ratings introduce confounds in studies of error awareness and cognitive control.

Main Methods:

• A flanker task was employed, comparing conditions with and without simultaneous accuracy ratings.
• Electroencephalography (EEG) data, including error-related negativity (ERN) and error positivity (Pe), were recorded and analyzed.
• Behavioral data, such as reaction times and post-error slowing, were also collected.

Main Results:

• Accuracy ratings amplified both error-related negativity and correct-related negativity, suggesting heightened performance monitoring.
• The error positivity showed a more pronounced difference between correct and incorrect responses when ratings were provided.
• Correct reaction times slowed, and post-error slowing decreased in the rating condition, indicating a more cautious response strategy.

Conclusions:

• The act of providing response accuracy ratings can significantly influence EEG measures of performance monitoring and behavioral responses.
• Researchers utilizing accuracy ratings should be aware of these potential confounds, which may affect interpretations of error awareness and cognitive control.
• Future studies should carefully consider the implications of accuracy rating procedures on observed electrophysiological and behavioral outcomes.