Anne-Catherine Nicolay

Cognitive advantage in children enrolled in a second-language immersion elementary school program for three years

Early bilingualism acquired from home or community is generally considered to positively influence cognitive development. The purpose of the present study was to determine to what extent bilingualism acquired through a second-language immersion education has a similar effect. Participants included a total of 106 French-speaking eight-year-old children drawn from two language groups: 53 children enrolled in English immersion classes since the age of five years (the immersion group) and 53 children enrolled in monolingual French-speaking classes (the monolingual group). The two groups were matched for verbal and nonverbal intelligence and socioeconomic status (SES). They were administered a battery of tasks assessing attentional and executive skills. The immersion groups reaction times were significantly faster than those of the monolingual group on tasks assessing alerting, auditory selective attention, divided attention and mental flexibility, but not interference inhibition. These results show that, after only three years, a second-language immersion school experience also produces some of the cognitive benefits associated with early bilingualism.

Cognitive abilities underlying second-language vocabulary acquisition in an early second-language immersion education context: A longitudinal study

First-language (L1) and second-language (L2) lexical development has been found to be strongly associated with phonological processing abilities such as phonological short-term memory (STM), phonological awareness, and speech perception. Lexical development also seems to be linked to attentional and executive skills such as auditory attention, flexibility, and response inhibition. The aim of this four-wave longitudinal study was to determine to what extent L2 vocabulary acquired through the particular school context of early L2 immersion education is linked to the same cognitive abilities. A total of 61 French-speaking 5-year-old kindergartners who had just been enrolled in English immersion classes were administered a battery of tasks assessing these three phonological processing abilities and three attentional/executive skills. Their English vocabulary knowledge was measured 1, 2, and 3 school years later. Multiple regression analyses showed that, among the assessed phonological processing abilities, phonological STM and speech perception, but not phonological awareness, appeared to underlie L2 vocabulary acquisition in this context of an early L2 immersion school program, at least during the first steps of acquisition. Similarly, among the assessed attentional/executive skills, auditory attention and flexibility, but not response inhibition, appeared to be involved during the first steps of L2 vocabulary acquisition in such an immersion school context.

Cognitive benefits in children enrolled in an early bilingual immersion school: A follow up study

Recent findings suggested that an L2-immersion school experience produced some of the cognitive benefits associated with early bilingualism. However, the cognitive differences observed might possibly be due to greater cognitive development in the immersion group before the children started the immersion program. The present study thus aimed at revisiting these results in a follow-up design in which children about to begin an L2-immersion program and monolinguals were matched for cognitive development. Our results support the previous findings and this longitudinal study strongly confirms that only 3 years in an L2-immersion program enhance the performance of the attentional/executive control network.