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Lateralization in speech perception? A first analysis of brain activation in 4-month-old children and adults
Stockholm University, Faculty of Humanities, Department of Linguistics, Phonetics.
2008 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Hemispheric lateralization in speech perception in infants and adults was studied by means of brain activation patterns via EEGmeasurement. Overall activation and ERPs in response to IDS-stimuli in Swedish, Portuguese and rotated Swedish were tested in 9 4-monthold infants and 13 adults with EEG head-nets. Left-hemispheric activation was expected in adults at least for intelligible speech stimuli, whereas non-specific activation in both hemispheres was expected in infants. The results showed a right-hemispheric lateralization tendency in adults. The infants showed no lateralization pattern. Further research on 9-month-old infants is the next step to understand lateralization development in infants.

Abstract [sv]

Hemisfärisk lateralisering vid talperception hos spädbarn och vuxna studerades genom hjärnaktiveringsmönster via EEG mätningar. Allmän aktivering och ERP som respons på barnriktat tal på svenska, portugisiska och roterad svenska testades på 9 stycken 4 månader gamla spädbarn och 13 stycken vuxna med EEG-nät. Vänster hjärnhalva förväntades aktiveras hos de vuxna åtminstone för förståeligt talstimuli, medan en icke-specifik aktivering i båda hemisfärerna förväntades hos spädbarnen. Resultaten visade en tendens mot högerhemisfärisk lateralisering hos vuxna. Spädbarnen visade inget lateraliseringsmönster. Ytterligare undersökningar på 9 månader gamla spädbarn är nästa steg för att nå kunskap angående lateraliseringsutvecklingen hos spädbarn.

Place, publisher, year, edition, pages
2008. , 20 p.
National Category
General Language Studies and Linguistics
Identifiers
URN: urn:nbn:se:su:diva-82761OAI: oai:DiVA.org:su-82761DiVA: diva2:578802
Presentation
2008-06-05, C 389, Institutionen för lingvistik, Stockholms universitet, Stockholm, 09:00 (English)
Uppsok
Humanities, Theology
Supervisors
Projects
The influence of attention to phonetic detail in speech perception on vocabulary development: Early prevention of developmental language delay
Available from: 2013-01-11 Created: 2012-11-26 Last updated: 2016-02-01Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
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More styles
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  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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  • text
  • asciidoc
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