Gejl M, et al. - Experts aspired to compare cognitive functioning and associated brain activation patterns during hypoglycaemia (plasma glucose [PG] just below 3.1 mmol/l) and euglycaemia in individuals with type 1 diabetes mellitus. Working memory performance was impaired during hypoglycaemia (mean PG 2.9 mmol/l). An association was found between altered performance and significantly increased blood flow in the striatum, a part of the basal ganglia implicated in regulating motor functions, memory, language, and emotion.