Short Communication: Different kinds of bilinguals – Different kinds of brains: The neural organisation of two languages in one brain  

Oleh:

Peltola, Maija S. ; Tamminen, Henna ; Toivonen, Heidi ; Kujala, Teija ; Näätänen, Risto

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 121 no. 3 (2012), page 261-266.
Topik: Bilingualism; Speech perception; Mismatch negativity (MMN); Phonological processing
Fulltext: 121_03_Peltola.pdf (972.24KB)

Isi artikel

The aim of this study was to determine whether the type of bilingualism affects neural organisation. We performed identification experiments and mismatch negativity (MMN) registrations in Finnish and Swedish language settings to see, whether behavioural identification and neurophysiological discrimination of vowels depend on the linguistic context, and whether there is a difference between two kinds of bilinguals. The stimuli were two vowels, which differentiate meaning in Finnish, but not in Swedish. The results indicate that Balanced Bilinguals are inconsistent in identification performance, and they have a longer MMN latency. Moreover, their MMN amplitude is context-independent, while Dominant Bilinguals show a larger MMN in the Finnish context. These results indicate that Dominant Bilinguals inhibit the preattentive discrimination of native contrast in a context where the distinction is non-phonemic, but this is not possible for Balanced Bilinguals. This implies that Dominant Bilinguals have separate systems, while Balanced Bilinguals have one inseparable system.

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