Rapid Communication

The relation between perfectionism and error-related negativity

[Speaker] Yang, Yaeeun:1
[Co-author] Park, Taejin:1
1:Chonnam National University (Korea(Republic of Korea))

The error-related negativity(ERN) is a response-locked ERP component which reliably
follows an erroneous response, with a maximum negative deflection at 50-80 ms
postresponse over the fronto-central scalp. This study examined the relationship between
ERN and perfectionism.
Participants were pre-screened to be either high(n=16; Perfectionist) or low(n=16; Non-
perfectionist) scorers on Korean version of Multidimensional Perfectionism Scale (Hewitt &
Flett, 1991). The task was an arrow version of the flanker task (Eriksen & Eriksen, 1974) in
which half of all trials were compatible and half were incompatible. ERPs were recorded
from 31 scalp electrodes and ERN component was measured at fronto-central
midline electrodes.
Average error rate was about 17%. Comparison of incorrect and correct trials
showed ERN components reaching the peak after about 50ms postresponse.
Perfectionist showed more negative ERN than non-perfectionist at the central scalp.
These findings suggest that personality trait of perfectionism can modulate error
detection in the brain.
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