Understanding the Link between Anxiety and a Neural Marker of Anxiety (The Error-Related Negativity) in 5 to 7 Year-Old Children

Despite growing evidence that an elevated error-related negativity (ERN) is a risk marker for anxiety, it is unclear what psychological construct underlies this association. To address this gap, we devised a 9-item self-report scale for assessing error sensitivity (i.e. the fear of making mistakes) in children. The Child Error Sensitivity Index was administered to 97 children ages 5–7 years old and demonstrated good internal reliability and convergent validity. The Child Error Sensitivity Index related to the ERN, and the relationship between the ERN and child anxiety symptoms was mediated by scores on the Child Error Sensitivity Index.