The team comprises five experts in the key areas investigated in this project: language development, caregiver-child interactions, executive functions, and sleep.

• Dr Nayeli Gonzalez-Gomez (Oxford Brookes University) is an expert on early language development and has extensive experience conducting research and managing projects in this area.

• Dr Catherine Davies (University of Leeds) is expert in the role of language input in child development. She is currently leading an ESRC-funded project investigating socioeconomic factors in children’s vocabulary development and has extensive networks with project stakeholders.

• Dr Michelle McGillion (University of Warwick ) is an expert in language development and the early communicative environment across diverse socio-economic populations. She has extensive experience in coding early caregiver-infant interaction across a range of contexts.

• Dr Alexandra Hendry (University of Oxford) is an expert in the development of executive functions in typically-developing populations, and those with a familial history of autism and/or ADHD. She has recently developed and validated the Early Executive Functions Questionnaire.

• Dr Teodora Gliga (University of East Anglia) has expertise with both language development and sleep and is currently the PI on a Wellcome Trust project investigating the impact of sensory disturbance on sleep and knowledge consolidation.

Assisted by Shannon Gibson (Postgraduate Research Assistant at Oxford Brookes University)

This study is part of a wider project investigating the effects of Covid-19 lockdowns on language development in different countries, led by Julien Mayor and Natalia Kartushina from the University of Oslo.