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Effects of expectation congruency on event-related potentials (ERPs) to facial expressions depend on cognitive load during the expectation phase.
Biol Psychol. 2016 10; 120:126-136.BP

Abstract

Previous studies have shown that event-related potentials (ERPs) to facial expressions are modulated by expectation (congruency) and that the ERP effects of expectation congruency are altered by cognitive tasks during the expectation phase. However, it is as yet unknown whether the congruency ERP effects can be modulated by the amount of cognitive load during the expectation phase. To address this question, electroencephalogram (EEG) was acquired when participants viewed fearful and neutral facial expressions. Before the presentation of facial expressions, a cue indicating the expression of a face and subsequently, an expectation interval without any cues were presented. Facial expressions were congruent with the cues in 75% of all trials. During the expectation interval, participants had to solve a cognitive task, in which several letters were presented for target letter detection. The letters were all the same under low load, but differed under high load. Event-related potential (ERP) results showed that the amount of cognitive load during the expectation phase altered the congruency effect in N2 and EPN amplitudes for fearful faces. Congruent as compared to incongruent fearful expressions elicited larger N2 and smaller EPN amplitudes under low load, but these congruency effects were not observed under high load. For neutral faces, a congruency effect in late positive potential (LPP) amplitudes was modulated by cognitive load during the expectation phase. The LPP was more positive for incongruent as compared to congruent faces under low load, but the congruency effect was not evident under high load. The findings indicate that congruency effects on ERPs are modulated by the amount of cognitive load the expectation phase and that this modulation is altered by facial expression.

Authors+Show Affiliations

Institute of Applied Psychology, Guangdong University of Finance, 510521 Guangzhou, China; Institute of Medical Psychology and Systems Neuroscience, University of Muenster, 48149 Muenster, Germany. Electronic address: huiyanlin@gduf.edu.cn.Department of Clinical Psychology and Psychotherapy, University of Muenster, 48149 Muenster, Germany.Institute of Medical Psychology and Systems Neuroscience, University of Muenster, 48149 Muenster, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27666368

Citation

Lin, Huiyan, et al. "Effects of Expectation Congruency On Event-related Potentials (ERPs) to Facial Expressions Depend On Cognitive Load During the Expectation Phase." Biological Psychology, vol. 120, 2016, pp. 126-136.
Lin H, Schulz C, Straube T. Effects of expectation congruency on event-related potentials (ERPs) to facial expressions depend on cognitive load during the expectation phase. Biol Psychol. 2016;120:126-136.
Lin, H., Schulz, C., & Straube, T. (2016). Effects of expectation congruency on event-related potentials (ERPs) to facial expressions depend on cognitive load during the expectation phase. Biological Psychology, 120, 126-136. https://doi.org/10.1016/j.biopsycho.2016.09.006
Lin H, Schulz C, Straube T. Effects of Expectation Congruency On Event-related Potentials (ERPs) to Facial Expressions Depend On Cognitive Load During the Expectation Phase. Biol Psychol. 2016;120:126-136. PubMed PMID: 27666368.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of expectation congruency on event-related potentials (ERPs) to facial expressions depend on cognitive load during the expectation phase. AU - Lin,Huiyan, AU - Schulz,Claudia, AU - Straube,Thomas, Y1 - 2016/09/22/ PY - 2015/11/15/received PY - 2016/06/20/revised PY - 2016/09/21/accepted PY - 2016/10/19/pubmed PY - 2017/9/14/medline PY - 2016/9/27/entrez KW - Cognitive load KW - EPN KW - Expectation congruency KW - Facial expressions KW - LPP KW - N2 SP - 126 EP - 136 JF - Biological psychology JO - Biol Psychol VL - 120 N2 - Previous studies have shown that event-related potentials (ERPs) to facial expressions are modulated by expectation (congruency) and that the ERP effects of expectation congruency are altered by cognitive tasks during the expectation phase. However, it is as yet unknown whether the congruency ERP effects can be modulated by the amount of cognitive load during the expectation phase. To address this question, electroencephalogram (EEG) was acquired when participants viewed fearful and neutral facial expressions. Before the presentation of facial expressions, a cue indicating the expression of a face and subsequently, an expectation interval without any cues were presented. Facial expressions were congruent with the cues in 75% of all trials. During the expectation interval, participants had to solve a cognitive task, in which several letters were presented for target letter detection. The letters were all the same under low load, but differed under high load. Event-related potential (ERP) results showed that the amount of cognitive load during the expectation phase altered the congruency effect in N2 and EPN amplitudes for fearful faces. Congruent as compared to incongruent fearful expressions elicited larger N2 and smaller EPN amplitudes under low load, but these congruency effects were not observed under high load. For neutral faces, a congruency effect in late positive potential (LPP) amplitudes was modulated by cognitive load during the expectation phase. The LPP was more positive for incongruent as compared to congruent faces under low load, but the congruency effect was not evident under high load. The findings indicate that congruency effects on ERPs are modulated by the amount of cognitive load the expectation phase and that this modulation is altered by facial expression. SN - 1873-6246 UR - https://www.unboundmedicine.com/medline/citation/27666368/Effects_of_expectation_congruency_on_event_related_potentials__ERPs__to_facial_expressions_depend_on_cognitive_load_during_the_expectation_phase_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-0511(16)30283-6 DB - PRIME DP - Unbound Medicine ER -