Reliability of the ERN across multiple tasks as a function of increasing errors.

Area of Science:

• Cognitive Neuroscience
• Neuropsychology
• Psychophysiology

Background:

• Event-related potential (ERP) studies investigate neural responses to stimuli.
• The error-related negativity (ERN) is a key ERP component reflecting error processing.
• ERN is studied for individual differences and as a neurobehavioral risk marker.

Purpose of the Study:

• To assess the psychometric properties of the ERN across different tasks.
• To determine ERN reliability as a function of the number of errors.
• To identify optimal tasks for ERN assessment in clinical and applied settings.

Main Methods:

• Examined internal reliability of the ERN.
• Compared ERN across flankers, Stroop, and go/no-go tasks.
• Analyzed reliability based on increasing error trial numbers.

Main Results:

• All tasks reliably elicited the ERN.
• Significant psychometric differences were observed between tasks.
• The flankers task demonstrated superior ERN reliability.

Conclusions:

• The ERN is reliably elicited across tasks.
• Task selection impacts ERN psychometric properties.
• The flankers task is recommended for robust ERN assessment.