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  Alpha and gamma band oscillations index differential processing of acoustically reduced and full forms

Drijvers, L., Mulder, K., & Ernestus, M. (2016). Alpha and gamma band oscillations index differential processing of acoustically reduced and full forms. Brain and Language, 153-154, 27-37. doi:10.1016/j.bandl.2016.01.003.

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drijvers_etal_2016.pdf (Verlagsversion), 2MB
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 Urheber:
Drijvers, Linda1, 2, 3, Autor           
Mulder, Kimberley1, 2, Autor
Ernestus, Mirjam1, 4, Autor           
Affiliations:
1Center for Language Studies, External Organization, ou_55238              
2Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behavior, External Organizations, ou_63283              
3International Max Planck Research School for Language Sciences, MPI for Psycholinguistics, Max Planck Society, ou_1119545              
4Research Associates, MPI for Psycholinguistics, Max Planck Society, Wundtlaan 1, 6525 XD Nijmegen, NL, ou_2344700              

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Schlagwörter: Speech comprehension; Neuronal oscillations; Speech reduction; Cognitive load; Semantic integration
 Zusammenfassung: Reduced forms like yeshay for yesterday often occur in conversations. Previous behavioral research reported a processing advantage for full over reduced forms. The present study investigated whether this processing advantage is reflected in a modulation of alpha (8–12 Hz) and gamma (30+ Hz) band activity. In three electrophysiological experiments, participants listened to full and reduced forms in isolation (Experiment 1), sentence-final position (Experiment 2), or mid-sentence position (Experiment 3). Alpha power was larger in response to reduced forms than to full forms, but only in Experiments 1 and 2. We interpret these increases in alpha power as reflections of higher auditory cognitive load. In all experiments, gamma power only increased in response to full forms, which we interpret as showing that lexical activation spreads more quickly through the semantic network for full than for reduced forms. These results confirm a processing advantage for full forms, especially in non-medial sentence position.

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Sprache(n): eng - English
 Datum: 2015-05-182016-01-232016-02-122016
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.bandl.2016.01.003
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Titel: Brain and Language
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 153-154 Artikelnummer: - Start- / Endseite: 27 - 37 Identifikator: ISSN: 0093-934X
CoNE: https://pure.mpg.de/cone/journals/resource/954922647078