T-complex measures in bilingual Spanish-English and Turkish-German children and monolingual peers

نویسندگان

  • Tanja Rinker
  • Valerie L. Shafer
  • Markus Kiefer
  • Nancy Vidal
  • Yan H. Yu
چکیده

BACKGROUND Lateral temporal neural measures (Na and T-complex Ta and Tb) of the auditory evoked potential (AEP) index maturation of auditory/speech processing. These measures are also sensitive to language experience in adults. This paper examined neural responses to a vowel sound at temporal electrodes in four- to five-year-old Spanish-English bilinguals and English monolinguals and in five- to six-year-old Turkish-German bilinguals and German monolinguals. The goal was to determine whether obligatory AEPs at temporal electrode sites were modulated by language experience. Language experience was defined in terms of monolingual versus bilingual status as well as the amount and quality of the bilingual language experience. METHOD AEPs were recorded at left and right temporal electrode sites to a 250-ms vowel [Ɛ] from 20 monolingual (American)-English and 18 Spanish-English children from New York City, and from 11 Turkish-German and 13 monolingual German children from Ulm, Germany. Language background information and standardized verbal and non-verbal test scores were obtained for the children. RESULTS The results revealed differences in temporal AEPs (Na and Ta of the T-complex) between monolingual and bilingual children. Specifically, bilingual children showed smaller and/or later peak amplitudes than the monolingual groups. Ta-amplitude distinguished monolingual and bilingual children best at right electrode sites for both the German and American groups. Amount of experience and type of experience with the target language (English and German) influenced processing. CONCLUSIONS The finding of reduced amplitudes at the Ta latency for bilingual compared to monolingual children indicates that language specific experience, and not simply maturational factors, influences development of the neural processes underlying the Ta AEP, and suggests that lateral temporal cortex has an important role in language-specific speech perception development.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Conceptual scoring of receptive and expressive vocabulary measures in simultaneous and sequential bilingual children.

PURPOSE The authors examined the effects of conceptual scoring on the performance of simultaneous and sequential bilinguals on standardized receptive and expressive vocabulary measures in English and Spanish. METHOD Participants included 40 English-speaking monolingual children, 39 simultaneous Spanish-English bilingual children, and 19 sequential bilingual children, ages 5-7. The children co...

متن کامل

Metalinguistic Awareness and Bilingual vs. Monolingual EFL Learners: Evidence from a Diagonal Bilingual Context

This paper reports a study of 85 Iranian EFL learners in the English Language Department of Urmia University. It explores the possible differences between performance of 38 Persian monolingual and 47 Turkish-Persian bilingual EFL learners on metalinguistic tasks of ungrammatical structures and translation. The underlying hypothesis is that bilinguals in diagonal bilingual contexts experience a ...

متن کامل

How much exposure to English is necessary for a bilingual toddler to perform like a monolingual peer in language tests?

BACKGROUND Bilingual children are under-referred due to an ostensible expectation that they lag behind their monolingual peers in their English acquisition. The recommendations of the Royal College of Speech and Language Therapists (RCSLT) state that bilingual children should be assessed in both the languages known by the children. However, despite these recommendations, a majority of speech an...

متن کامل

language development and lexical awareness of bilingual (Azeri -Persian) hard of hearing impaired children

The Relationship between Mean Length of utterance (MLU), Lexical Richness and syntactical and lexical metalinguistic Awareness in Bilingual (Turkish-Persian) normal and hearing impaired Children   Objectives: Regarding the impact of hearing loss on language development and metalinguistic skill and being language development different from metalinguistic skill in bilingual children, studying of...

متن کامل

Bilingual experience and executive functioning in young children.

Advanced inhibitory control skills have been found in bilingual speakers as compared to monolingual controls (Bialystok, 1999). We examined whether this effect is generalized to an unstudied language group (Spanish-English bilingual) and multiple measures of executive function by administering a battery of tasks to 50 kindergarten children drawn from three language groups: native bilinguals, mo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 12  شماره 

صفحات  -

تاریخ انتشار 2017