Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study
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Tartalom: http://www.sciencedirect.com/science/article/pii/S0891422...
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published



Type = Article
Cím:
Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study
Létrehozó:
Ragó, Anett
Honbolygó, Ferenc
Róna, Zs.
Beke, Anna Mária
Csépe, Valéria
Dátum:
2014
Téma:
BF02 Developmental psychology / fejlődéslélektan
BF05 Child psychology / gyermeklélektan
BF09 Sensation / észlelés, érzékelés
Tartalmi leírás:
Infants born prematurely are at higher risk for later linguistic deficits present in delayed or atypical processing of phonetic and prosodic information. In order to be able to specify the nature of this atypical development, it is important to investigatethe role of early experience in language perception. According to the concept of Gonzalez -Gomez and Nazzi (2012)there is a special intrauterine sensitivity to the prosodic features of languages that should have a special role in language acquisition. Therefore, we may also assume that pre- and full-term infants having months difference in intrauterine experience show different maturation patterns of processing
prosodic and phonetic information present at word level. The aim of our study was to investigate the effect of these differences on word stress patternvs. phoneme information
processing.
Two age groups of infants (6 and 10 month-olds) were included in our study. 21 of 46 of the total of infants investigated were prematurely born with low birth weight. W
e used the mismatch negativity (MMN) event related brain
potential (ERP)component, a widely used electrophysiological correlate of acoustic change detection,
for testing the assumed developmental changes of phoneme and
word stress discrimination. In a passive oddball paradigm we
used a word as standard, a pseudo-word as phoneme deviant, and an illegally uttered word as stress deviant.Our results showed no differences in MMN responses in the phoneme deviant condition between the groups,meaning a relatively intact maturation of phoneme processing of preterm infants a
s compared to their contemporaries. However, the mismatch responses measured in the stress condition revealed significant between - group differences. These results strengthen the view that the total length of intrauterine experience influences the time of emergence of prosodic processing.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Ragó, Anett and Honbolygó, Ferenc and Róna, Zs. and Beke, Anna Mária and Csépe, Valéria (2014) Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study. RESEARCH IN DEVELOPMENTAL DISABILITIES, 35 (1). pp. 192-202. ISSN 0891-4222
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