Neural plasticity in the deaf brain: Studying the reorganisation of cognitive networks in adults or children as a consequence of deafness early in life

Neural plasticity is the capacity of the brain for reorganisation. Studying this helps us understand brain function, and its potential for change and enhancement. Congenital deafness provides an excellent model for the study of neural plasticity. This is because in deaf humans, neural plasticity is not only the result of hearing loss, but also of cognitive factors, as language must be acquired visually and is often delayed.

Using neuroimaging techniques such as functional Magnetic Resonance Imaging (fMRI) and functional Near-Infrared Spectroscopy (fNIRS), this project studies the reorganisation of cognitive networks in the brain in deaf adults and children. The aim is to understand which specific cognitive functions undergo reorganisation, and what the behavioural consequences are of such changes. A central aspect will be to understand the role of language development, modality (speech or sign language), and proficiency on both neural reorganisation and cognitive skills of deaf individuals.

The successful candidate will receive training in a wide range of research skills including psychological testing, data analysis, brain imaging, computer programming, and British Sign Language.

Neural plasticity in the deaf brain is an under-researched field, given the challenges in terms of access and communication with the deaf population, heterogeneity of language experience and experimental settings. The Deafness and Neural Plasticity lab will provide the experience and facilities to succeed in this project. Dr. Velia Cardin has more than 10 years of experience with neuroimaging techniques, and has worked in the field of deafness for six years. She has ongoing collaborations with other institutions, including UCL’s Deafness, Cognition and Language Centre, and the Swedish Institute for Disability Research, Linköping University, Sweden.

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