Equivalence Class Formation and the N400: Methodological Issues.
The electroencephalogram (EEG)-based N400 component is often described as an index of a semantic relation. Recent studies suggested that the N400 component can also be used as an electrophysiological measure of equivalence class formation, yet more research is needed to clarify the effects of experi...
| Publicado en: | Psychological Record Vol. 69; no. 2; pp. 175 - 192 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
| Publicado: |
Springer Nature
Jun2019
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=136586121&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 136586121 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00332933 PSD jtl: Psychological Record issn: 00332933 maglogo: N pubinfo: dt: Jun2019 vid: 69 iid: 2 pid: 237 pub: Springer Nature artinfo: ui: 136586121 10.1007/s40732-019-00332-x ppf: 175 ppct: 17 formats: fmt: – @attributes: type: T – @attributes: type: P size: 1.5MB tig: atl: Equivalence Class Formation and the N400: Methodological Issues. aug: au: Granerud-Dunvoll, Guro Arntzen, Erik Elvsåshagen, Torbjørn Hatlestad-Hall, Christoffer Malt, Eva affil: Department of Behavioral Science, Oslo Metropolitan University, Oslo, Norway Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Oslo University Hospital, Oslo, Norway Department of Adult Habilitation, Akershus University Hospital, Akershus, Norway Institute of Clinical Medicine, University of Oslo, Oslo, Norway Department of Neurology, Oslo University Hospital, Oslo, Norway CHTD research, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway Campus Ahus, Institute of Clinical Medicine, University of Oslo, Oslo, Norway su: Conditioned response Mathematical equivalence Theory of change sug: subj: Conditioned response Mathematical equivalence Theory of change keyword: Abstract shapes Adult participants EEG Meaningful stimuli N400 Priming Stimulus equivalence Abstract shapes Adult participants EEG Meaningful stimuli N400 Priming Stimulus equivalence ab: The electroencephalogram (EEG)-based N400 component is often described as an index of a semantic relation. Recent studies suggested that the N400 component can also be used as an electrophysiological measure of equivalence class formation, yet more research is needed to clarify the effects of experimental conditions on the N400 response. In Experiment 1 of the present study, the participants were trained on six conditional discriminations and tested for the formation of three 3-member classes. If they formed equivalence classes with half of the possible emerged relations, the participants were given a priming test with the other half. Related and unrelated stimulus pairs were presented, and the participant had to decide whether the stimuli were related or not. The results showed that a nonsignificant N400 response was observed after unrelated stimulus pairs were presented but not when related stimulus pairs were presented. The strength of the N400 response weakened over the number of stimuli presentations. In Experiment 2, we examined whether changes to the methodology of Experiment 1 would produce stronger N400 responses. The participants also underwent a word priming procedure, which has been shown to produce robust N400 responses. We found more robust N400 responses in Experiment 2 than in Experiment 1, and the N400 response was larger in transitivity/equivalence relations than in symmetry relations. There was also a significant relation effect in the word priming procedure. Together, these findings support the notion that the N400 component can be used as an electrophysiological measure of equivalence class formation and illustrate how experimental conditions can influence the N400 response. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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