ManyNumbers – an international project on learning to count and numbers

mathOP, Ongoing project

2025 – 2026 From the first months of life, infants are able to perceive how many objects are present and can even perform simple arithmetic operations: if they see five objects placed behind a cover, then another five objects, they expect to see around ten...

Neural study of bilingual lexicon structure: impact of language distance, word type, and relatedness in the developing brain

LangageOP, Ongoing project

2026-2030 Exposure to two languages from birth is increasingly common, yet how the brain develops them in parallel remains unclear. Our aim is to investigate lexical-semantic organisation in bilingual infants, as a lens into the internal structure of bilingual...

Early speech perception and processing of phonological information in lexical acquisition in French- and Akan-learning infants and toddlers

LangageOP, Ongoing project

In this cross-linguistic project, we investigate the early development of key abilities in phonolexical acquisition and how these are shaped by the ambient language(s). Using a behavioral method and an interactive word learning approach, we aim to provide an...

Mental Space in Memory through Adversarial Collaboration: Exploring the Origins and the Developmental Course – SPACEODC

mathOP, Ongoing project

2025 – 2029 Humans tend to spontaneously use space in order to think, externally represent (e.g., calendars), and even talk about a variety of non-spatial domains (e.g., time). The general consensus is that mentally spatializing information constitutes a...

The origins and development of the mental timeline

mathOP, Ongoing project

The ability to represent abstract concepts sets humans apart from all other animals. For example, although we cannot see or touch time, we possess rich temporal representations. What enables this cognitive feat? As evidenced by language, gesture, and cultural...

Geometries Return

mathOP, Ongoing project

2025 – 2029 From the very first months of life, infants possess the ability to perceive the number of items in collections, and can perform simple arithmetic operations on these numerosities. These early intuitions support children’s learning of arithmetic at...