Neurophysiological and behavioral evidence that self-uncertainty salience increases self-esteem striving.

The present research investigated the effect of self-uncertainty salience on self-esteem striving, as well as the corresponding self-regulatory processes. Inspired by uncertainty management and meaning maintenance models, we conducted an electroencephalogram experiment to examine how self-uncertainty salience affects performance on self-esteem related tasks, and how it affects neurophysiological activity related to performance monitoring (e.g., error-related negativity, error positivity) on those tasks. Results showed that when self-uncertainty was salient, participants performed better on a task that was high (but not low) in self-esteem relevance, and these participants also displayed a larger amplitude of error positivity after error commissions, which is considered a manifestation of heightened performance monitoring. Overall, these results suggest that self-uncertainty salience increases the need and efforts for self-esteem striving. Further implications are discussed in terms of meaning compensation and self-uncertainty management.