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Natalia Reoyo-Serrano; Anastasia Dimakou; Chiara Nascimben; Tamara Bastianello; Daniela Lucangeli; Silvia Benavides-Varela – Developmental Science, 2025
The boundary effect, namely the infants' failures to compare small and large numerosities, is well documented in studies using visual stimuli. The prevailing explanation is that the numerical system used to process sets up to 3 is incompatible with the system employed for numbers >3. This study investigates the boundary effect in 10-month-old…
Descriptors: Infants, Language Acquisition, Speech Communication, Language Processing
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Mumford, Katherine H.; Aussems, Suzanne; Kita, Sotaro – Developmental Science, 2023
Previous research has shown a strong positive association between right-handed gesturing and vocabulary development. However, the causal nature of this relationship remains unclear. In the current study, we tested whether gesturing with the right hand enhances linguistic processing in the left hemisphere, which is contralateral to the right hand.…
Descriptors: Nonverbal Communication, Handedness, Toddlers, Vocabulary Development
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Ansgar D. Endress – Developmental Science, 2024
In many domains, learners extract recurring units from continuous sequences. For example, in unknown languages, fluent speech is perceived as a continuous signal. Learners need to extract the underlying words from this continuous signal and then memorize them. One prominent candidate mechanism is statistical learning, whereby learners track how…
Descriptors: Syllables, Brain Hemisphere Functions, Diagnostic Tests, Memory
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Fló, Ana; Brusini, Perrine; Macagno, Francesco; Nespor, Marina; Mehler, Jacques; Ferry, Alissa L. – Developmental Science, 2019
Before infants can learn words, they must identify those words in continuous speech. Yet, the speech signal lacks obvious boundary markers, which poses a potential problem for language acquisition (Swingley, "Philos Trans R Soc Lond. Series B, Biol Sci" 364(1536), 3617-3632, 2009). By the middle of the first year, infants seem to have…
Descriptors: Neonates, Infants, Experiments, Language Acquisition
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Barr, Rachel; Rusnak, Sylvia N.; Brito, Natalie H.; Nugent, Courtney – Developmental Science, 2020
Bilingual infants from 6- to 24-months of age are more likely to generalize, flexibly reproducing actions on novel objects significantly more often than age-matched monolingual infants are. In the current study, we examine whether the addition of novel verbal labels enhances memory generalization in a perceptually complex imitation task. We…
Descriptors: Infants, Monolingualism, Bilingualism, Comparative Analysis