Geraldine works on the behavioral effects of non-invasive brain stimulation in different populations. She investigates the use of transcranial direct current stimulation to boost neural plasticity in severe brain injury. She also works on the neurobehavioural characterization of the post-concussion syndrome following mild traumatic brain injury and on possible therapeutic paths. Her research further includes the effects of transcranial direct current stimulation on sports performance. She now works with the Réseau Francophone Olympique de la Recherche en Médecine du sport (ReFORM) and manages research projects related to injury prevention.