Dr Christa Lam-Cassettari, BPsych (Hons Class 1) WSU, PhD WSU: is a Research Fellow at Western Sydney University. Her research aims to understand how psychosocial factors influence early speech and language development. She has received funding from South West Sydney Research to study the impact of postnatal depression on infant-directed speech and early mother-infant interactions; the ARC Centre of Excellence for the Dynamics of Language to study the role of vocal contingency on early communicative development, and the effect of digital communication on infant-directed speech; and the Marcus and Amalia Wallenberg Foundation to investigate the relationship between vocal emotion in parents' infant-directed speech and early word learning in Sweden and Australia. Other research interests include the effect of psychosocial interventions on parent-child communication, and understanding how psychosocial factors influence early speech and language development. Christa previously held a postdoctoral fellowship at the National Institute for Health Research Biomedical Research Unit: Hearing, Nottingham University UK (2010-2012).