In 2010 she moved to the Sobell Department of Motor Neuroscience and Movement Disorders, where she worked with John Rothwell for half a year, before joining Andrew Maudsley at the University of Miami.
[4] After returning from Miami, Stagg started a GlaxoSmithKline Junior Research Fellowship at St Edmund Hall, Oxford.
In a clinical study Stagg taught volunteers a sequence of finger motions and monitored the levels of γ-aminobutyric acid (GABA), the brain's main inhibitory neurotransmitter.
[citation needed] Stagg demonstrated that ipsilesional anodal transcranial direct-current stimulation (tDCS)[6] can support patients in recovery after stroke.
[9] Stagg has worked on magnetic resonance spectroscopy as a means to understand neuronal activity in vivo, through the measurement of glutamate and GABA.