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  Accentuate or repeat?: Brain signatures of developmental periods in infant word recognition

Männel, C., & Friederici, A. D. (2013). Accentuate or repeat?: Brain signatures of developmental periods in infant word recognition. Cortex, 49(10), 2788-2798. doi:10.1016/j.cortex.2013.09.003.

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 Urheber:
Männel, Claudia1, Autor           
Friederici, Angela D.1, Autor           
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Schlagwörter: Word recognition; Accentuation; Repetition; Temporal cortex; Event-related brain potentials
 Zusammenfassung: Language acquisition has long been discussed as an interaction between biological preconditions and environmental input. This general interaction seems particularly salient in lexical acquisition, where infants are already able to detect unknown words in sentences at 7 months of age, guided by phonological and statistical information in the speech input. While this information results from the linguistic structure of a given language, infants also exploit situational information, such as speakers’ additional word accentuation and word repetition. The current study investigated the developmental trajectory of infants’ sensitivity to these two situational input cues in word recognition. Testing infants at 6, 9, and 12 months of age, we hypothesized that different age groups are differentially sensitive to accentuation and repetition. In a familiarization–test paradigm, event-related brain potentials revealed age-related differences in infants’ word recognition as a function of situational input cues: at 6 months infants only recognized previously accentuated words, at 9 months both accentuation and repetition played a role, while at 12 months only repetition was effective. These developmental changes are suggested to result from infants’ advancing linguistic experience and parallel auditory cortex maturation. Our data indicate very narrow and specific input-sensitive periods in infant word recognition, with accentuation being effective prior to repetition.

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Sprache(n): eng - English
 Datum: 2013-07-102013-05-072013-09-102013-09-192013-11
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.cortex.2013.09.003
PMID: 24120263
Anderer: Epub 2013
 Art des Abschluß: -

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Titel: Cortex
  Andere : Cortex
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Milan [etc.] : Elsevier Masson SAS
Seiten: - Band / Heft: 49 (10) Artikelnummer: - Start- / Endseite: 2788 - 2798 Identifikator: ISSN: 0010-9452
CoNE: https://pure.mpg.de/cone/journals/resource/954925393344