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  Event-related potentials and oscillatory brain responses associated with semantic and Stroop-like interference effects in overt naming

Piai, V., Roelofs, A., & van der Meij, R. (2012). Event-related potentials and oscillatory brain responses associated with semantic and Stroop-like interference effects in overt naming. Brain Research, 1450, 87-101. doi:10.1016/j.brainres.2012.02.050.

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Piai_et_al_Brain_Res_2012.pdf (Verlagsversion), 847KB
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 Urheber:
Piai, Vitória1, 2, Autor           
Roelofs, Ardi, Autor           
van der Meij, Roemer1, Autor
Affiliations:
1Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands, ou_55236              
2International Max Planck Research School for Language Sciences, MPI for Psycholinguistics, Max Planck Society, Nijmegen, NL, ou_1119545              

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Schlagwörter: Semantic interference; Stroop; ERP; Time–frequency analysis; Beta band
 Zusammenfassung: Picture–word interference is a widely employed paradigm to investigate lexical access in word production: Speakers name pictures while trying to ignore superimposed distractor words. The distractor can be congruent to the picture (pictured cat, word cat), categorically related (pictured cat, word dog), or unrelated (pictured cat, word pen). Categorically related distractors slow down picture naming relative to unrelated distractors, the so-called semantic interference. Categorically related distractors slow down picture naming relative to congruent distractors, analogous to findings in the colour–word Stroop task. The locus of semantic interference and Stroop-like effects in naming performance has recently become a topic of debate. Whereas some researchers argue for a pre-lexical locus of semantic interference and a lexical locus of Stroop-like effects, others localise both effects at the lexical selection stage. We investigated the time course of semantic and Stroop-like interference effects in overt picture naming by means of event-related potentials (ERP) and time–frequency analyses. Moreover, we employed cluster-based permutation for statistical analyses. Naming latencies showed semantic and Stroop-like interference effects. The ERP waveforms for congruent stimuli started diverging statistically from categorically related stimuli around 250 ms. Deflections for the categorically related condition were more negative-going than for the congruent condition (the Stroop-like effect). The time–frequency analysis revealed a power increase in the beta band (12–30 Hz) for categorically related relative to unrelated stimuli roughly between 250 and 370 ms (the semantic effect). The common time window of these effects suggests that both semantic interference and Stroop-like effects emerged during lexical selection.

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Sprache(n): eng - English
 Datum: 20122012
 Publikationsstatus: Erschienen
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 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.brainres.2012.02.050
PMID: 22424790
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Titel: Brain Research
  Andere : Brain Res.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 1450 Artikelnummer: - Start- / Endseite: 87 - 101 Identifikator: ISSN: 0006-8993
CoNE: https://pure.mpg.de/cone/journals/resource/954926250616