Patients with mild acquired brain injury, i.e. patients with a level of cognitive functioning representing VII-X on the revised Rancho Los Amigos Levels of cognitive Functioning Scale -LOCF often suffer from cognitive consequences long time after their injury or disease. Self-reported difficulties are often described as impaired concentration and memory. Residual memory deficits are one of the most common consequences of ABI, which may impair an individual’s memory performance in everyday life. However, authentic memory deficits has been proven to be difficult to identify, at least to the point that everyday memory difficulties appear to display only weak associations with memory indices obtained by cognitive/ neuropsychological test.