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Response‐related negativities following correct and incorrect responses: Evidence from a temporospatial principal component analysis
Author(s) -
Endrass Tanja,
Klawohn Julia,
Gruetzmann Rosa,
Ischebeck Moritz,
Kathmann Norbert
Publication year - 2012
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2012.01365.x
Subject(s) - principal component analysis , negativity effect , psychology , error related negativity , task (project management) , cognitive psychology , function (biology) , component (thermodynamics) , cognition , audiology , developmental psychology , statistics , anterior cingulate cortex , neuroscience , mathematics , medicine , physics , management , evolutionary biology , economics , biology , thermodynamics
Two ERP components have been observed following correct and incorrect responses, the error‐related negativity ( ERN / N e) and the correct‐related negativity ( CRN ). The function of these components is still under debate. We used a visual size discrimination task at three difficulty levels and utilized a temporospatial principal component analysis ( PCA ) to examine whether ERN / N e and CRN could be explained by one or more factors. While ERN / N e decreased with higher task difficulty, amplitudes increased for correct responses at parietal electrodes. PCA revealed two temporospatial factors: a centrally distributed factor differing between correct and incorrect responses and a more frontoparietally distributed factor contributing to both ERN / N e and CRN . These data support the notion that ERN / N e and CRN might reflect a combination of two underlying processes: an error‐sensitive and an outcome‐independent aspect of response monitoring.