Post-Decision Wagering Affects Metacognitive Awareness of Emotional Stimuli: An Event Related Potential Study

Michał Wierzchoń , Eligiusz Wronka , Borysław Paulewicz , Remigiusz Szczepanowski


The present research investigated metacognitive awareness of emotional stimuli and its psychophysiological correlates. We used a backward masking task presenting participants with fearful or neutral faces. We asked participants for face discrimination and then probed their metacognitive awareness with confidence rating (CR) and post-decision wagering (PDW) scales. We also analysed psychophysiological correlates of awareness with event-related potential (ERP) components: P1, N170, early posterior negativity (EPN), and P3. We have not observed any differences between PDW and CR conditions in the emotion identification task. However, the "aware" ratings were associated with increased accuracy performance. This effect was more pronounced in PDW, especially for fearful faces, suggesting that emotional stimuli awareness may be enhanced by monetary incentives. EEG analysis showed larger N170, EPN and P3 amplitudes in aware compared to unaware trials. It also appeared that both EPN and P3 ERP components were more pronounced in the PDW condition, especially when emotional faces were presented. Taken together, our ERP findings suggest that metacognitive awareness of emotional stimuli depends on the effectiveness of both early and late visual information processing. Our study also indicates that awareness of emotional stimuli can be enhanced by the motivation induced by wagering.
Author Michał Wierzchoń
Michał Wierzchoń,,
, Eligiusz Wronka
Eligiusz Wronka,,
, Borysław Paulewicz (Wydział Zamiejscowy w Katowicach)
Borysław Paulewicz,,
- Wydział Zamiejscowy w Katowicach
, Remigiusz Szczepanowski (Wydział Zamiejscowy we Wrocławiu)
Remigiusz Szczepanowski,,
- Wydział Zamiejscowy we Wrocławiu
Journal seriesPLoS ONE, ISSN 1932-6203, (A 40 pkt)
Issue year2016
Publication size in sheets1
ASJC Classification2700 General Medicine; 1100 General Agricultural and Biological Sciences; 1300 General Biochemistry, Genetics and Molecular Biology
Languageen angielski
Szczepanowski_wprowadzony 19.09.pdf 79.38 KB
Borysław_Paulewicz_2016_Post-Decision.JPG 2.54 MB
Score (nominal)40
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.101; WoS Impact Factor: 2016 = 2.806 (2) - 2016=3.394 (5)
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