The ageing of the population will inevitably lead to a growing number of older people living alone and in need of care. Given the high cost of geriatric care, a critical research issue is exploring ways to improve or maintain cognitive and functional status in old age. Unfortunately, it has been shown that training those specific cognitive processes most sensitive to ageing (such as speed of processing or working memory), produces only limited beneficial effects. However, research also suggests that factors such as cognitive engagement, physical activity and social context may act as more general modulators of cognitive decline. This project is a longitudinal study with experimental and control groups. It is inspired from the engagement model of cognitive optimization suggesting that a lifestyle marked by social and intellectual engagement may mitigate age-related declines on cognitive functioning. It uses new cutting-edge information computing technology (ICT) solutions to improve or simply maintain cognitive functions in the elderly. This research investigates how the treatment reduces the effects of cognitive age-related decline in executive control processes and episodic (explicit) memory using behavioral and imaging measures. The results will provide significant knowledge on the potential of new ICT technologies to delay, compensate, and even prevent common chronic problems experienced by the elderly population. The hypothesis is that cognitive training with video-games through ICT solutions will promote brain and mental health and independence. Ultimately, the objective is to contribute to the understanding of factors that help avoiding the (personal and economic) consequences of long-term care in geriatric institutions.