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Processing of task-irrelevant emotional faces impacted by implicit sequence learning.
Neuroreport. 2015 Dec 02; 26(17):1056-60.N

Abstract

Attentional load may be increased by task-relevant attention, such as difficulty of task, or task-irrelevant attention, such as an unexpected light-spot in the screen. Several studies have focused on the influence of task-relevant attentional load on task-irrelevant emotion processing. In this study, we used event-related potentials to examine the impact of task-irrelevant attentional load on task-irrelevant expression processing. Eighteen participants identified the color of a word (i.e. the color Stroop task) while a picture of a fearful or a neutral face was shown in the background. The task-irrelevant attentional load was increased by regularly presented congruence trials (congruence between the color and the meaning of the word) in the regular condition because implicit sequence learning was induced. We compared the task-irrelevant expression processing between the regular condition and the random condition (the congruence and incongruence trials were presented randomly). Behaviorally, reaction times for the fearful face condition were faster than the neutral faces condition in the random condition, whereas no significant difference was found in the regular condition. The event-related potential results indicated enhanced positive amplitudes in P2, N2, and P3 components relative to neutral faces in the random condition. In comparison, only P2 differed significantly for the two types of expressions in the regular condition. The study showed that attentional load increased by implicit sequence learning influenced the late processing of task-irrelevant expression.

Authors+Show Affiliations

aDepartment of Psychology, School of Social and Behavioral Sciences, Nanjing University, Nanjing bSchool of psychology, Central China Normal University, Wuhan cBeijing Key Lab of Applied Experimental Psychology, School of Psychology dState Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University eCenter for Collaboration and Innovation in Brain and Learning Sciences, Beijing, China fDepartment of Psychology, West Virginia Wesleyan College, Buckhannon, West Virginia, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26445285

Citation

Peng, Ming, et al. "Processing of Task-irrelevant Emotional Faces Impacted By Implicit Sequence Learning." Neuroreport, vol. 26, no. 17, 2015, pp. 1056-60.
Peng M, Cai M, Zhou R. Processing of task-irrelevant emotional faces impacted by implicit sequence learning. Neuroreport. 2015;26(17):1056-60.
Peng, M., Cai, M., & Zhou, R. (2015). Processing of task-irrelevant emotional faces impacted by implicit sequence learning. Neuroreport, 26(17), 1056-60. https://doi.org/10.1097/WNR.0000000000000467
Peng M, Cai M, Zhou R. Processing of Task-irrelevant Emotional Faces Impacted By Implicit Sequence Learning. Neuroreport. 2015 Dec 2;26(17):1056-60. PubMed PMID: 26445285.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Processing of task-irrelevant emotional faces impacted by implicit sequence learning. AU - Peng,Ming, AU - Cai,Mengfei, AU - Zhou,Renlai, PY - 2015/10/8/entrez PY - 2015/10/8/pubmed PY - 2016/7/30/medline SP - 1056 EP - 60 JF - Neuroreport JO - Neuroreport VL - 26 IS - 17 N2 - Attentional load may be increased by task-relevant attention, such as difficulty of task, or task-irrelevant attention, such as an unexpected light-spot in the screen. Several studies have focused on the influence of task-relevant attentional load on task-irrelevant emotion processing. In this study, we used event-related potentials to examine the impact of task-irrelevant attentional load on task-irrelevant expression processing. Eighteen participants identified the color of a word (i.e. the color Stroop task) while a picture of a fearful or a neutral face was shown in the background. The task-irrelevant attentional load was increased by regularly presented congruence trials (congruence between the color and the meaning of the word) in the regular condition because implicit sequence learning was induced. We compared the task-irrelevant expression processing between the regular condition and the random condition (the congruence and incongruence trials were presented randomly). Behaviorally, reaction times for the fearful face condition were faster than the neutral faces condition in the random condition, whereas no significant difference was found in the regular condition. The event-related potential results indicated enhanced positive amplitudes in P2, N2, and P3 components relative to neutral faces in the random condition. In comparison, only P2 differed significantly for the two types of expressions in the regular condition. The study showed that attentional load increased by implicit sequence learning influenced the late processing of task-irrelevant expression. SN - 1473-558X UR - https://www.unboundmedicine.com/medline/citation/26445285/Processing_of_task_irrelevant_emotional_faces_impacted_by_implicit_sequence_learning_ L2 - https://doi.org/10.1097/WNR.0000000000000467 DB - PRIME DP - Unbound Medicine ER -