title: Human recognition memory and conflict control: An event-related potential study.
abstract: The relationship between recognition memory and cognitive control is an important research topic. The current study investigated how conflict control influences an individual's emotional memory. During the encoding phase, participants were required to judge the affective valence of a Chinese Chengyu word (either positive or negative) in a modified Simon paradigm and to remember the word. Half of the words were presented in the congruent condition and the other half were displayed in the incongruent condition. During the retrieval phase, participants were instructed to make an 'old/new judgment' and decide whether the word had been presented previously. Electrophysiological responses were recorded using the event-related potential (ERP) technique. The behavioral results of retrieval processes showed that participants remembered more positive than negative words when they were encoded in the congruent condition. The electrophysiological results revealed that the retrieval of words encoded in the incongruent condition elicited less negative frontal negativity (FN) and early posterior negativity (EPN) amplitudes than those encoded in the congruent condition. The retrieval of words encoded in the incongruent condition induced greater late positive complex (LPC) amplitudes, relative to those encoded in the congruent condition on the left hemisphere. It was also observed that the recognition of positive words induced faster LPC responses than negative words when they were encoded in the incongruent condition. The present electrophysiological study illustrates that emotional memory processes may be affected by conflict control.
authors.affiliation: Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China. Electronic address: liutr@psych.ac.cn.
authors.forename: T
authors.initials: T
authors.lastname: Liu
authors.affiliation: Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Science, Beijing 100049, China.
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.affiliation: Natural Language Processing Laboratory, College of Information Science and Engineering, Northeastern University, Liaoning 110819, China.
authors.forename: T
authors.initials: T
authors.lastname: Xiao
authors.affiliation: Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Learning and Philosophy, Aalborg University, Denmark. Electronic address: shijn@psych.ac.cn.
authors.forename: J
authors.initials: J
authors.lastname: Shi
mesh_terms: D001921:Brain / Q000502:physiology*; D003220:Conflict, Psychological; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D007600:Judgment / Q000502:physiology; D007807:Language Tests; D008297:Male; D011939:Mental Recall / Q000502:physiology; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology; D010775:Photic Stimulation; D011930:Reaction Time; D011932:Reading; D021641:Recognition, Psychology / Q000502:physiology*; D055815:Young Adult
keywords: conflict control; emotional recognition memory; event-related potentials