How the human brain supports language in different ways

A stroke patient’s ability to regain speech depends on which parts of their brain are still intact and whether other regions can learn to take over—but no one has yet built a complete map of how that happens. This project tackles a fundamental gap in neurology: we know that some people recover language after a stroke while others do not, but we do not understand the full range of neural systems that can support language, or what determines whether a patient’s brain actually uses them. The researcher will study hundreds of patients in the first weeks and months after stroke, using fMRI to track which brain regions activate during 13 different language tasks, and combining that with anatomical scans to measure tissue changes—such as iron levels and neuronal density—in and around the damaged area. They will also examine non-lesion factors like cognitive impairments, mental health, and clinical interventions. If successful, this work will produce a neurological model of language recovery that could help clinicians predict which patients are most likely to benefit from specific therapies, and when. The research is fundamental science—it aims to understand how the brain reorganises itself—but a clearer picture of recovery pathways could eventually guide more targeted rehabilitation for the roughly one-third of stroke survivors who experience aphasia.