ERIC Number: EJ1454647
Record Type: Journal
Publication Date: 2025-Jan
Pages: 16
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1363-755X
EISSN: EISSN-1467-7687
Functional Brain Adaptations during Speech Processing in 4-Month-Old Bilingual Infants
Borja Blanco; Monika Molnar; Irene Arrieta; César Caballero-Gaudes; Manuel Carreiras
Developmental Science, v28 n1 e13572 2025
Language learning is influenced by both neural development and environmental experiences. This work investigates the influence of early bilingual experience on the neural mechanisms underlying speech processing in 4-month-old infants. We study how an early environmental factor such as bilingualism interacts with neural development by comparing monolingual and bilingual infants' brain responses to speech. We used functional near-infrared spectroscopy (fNIRS) to measure 4-month-old Spanish-Basque bilingual and Spanish monolingual infants' brain responses while they listened to forward (FW) and backward (BW) speech stimuli in Spanish. We reveal distinct neural signatures associated with bilingual adaptations, including increased engagement of bilateral inferior frontal and temporal regions during speech processing in bilingual infants, as opposed to left hemispheric functional specialization observed in monolingual infants. This study provides compelling evidence of bilingualism-induced brain adaptations during speech processing in infants as young as 4 months. These findings emphasize the role of early language experience in shaping neural plasticity during infancy suggesting that bilingual exposure at this young age profoundly influences the neural mechanisms underlying speech processing.
Descriptors: Brain, Cognitive Processes, Cognitive Development, Speech Communication, Language Processing, Bilingualism, Infants, Foreign Countries, Environmental Influences, Spanish, Brain Hemisphere Functions, Specialization
Wiley. Available from: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030. Tel: 800-835-6770; e-mail: cs-journals@wiley.com; Web site: https://bibliotheek.ehb.be:2191/en-us
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Spain
Grant or Contract Numbers: N/A