From the MS Trust:
Staying Smart is a website designed for people who want to know (or know more) about how MS can affect thinking. Not everyone with MS will experience difficulties in this area. But for those who do, information can be hard to find. “Cognition” is the general word that covers all aspects of thinking. It includes memory,concentration and planning. To help you work out which type of thinking is tricky for you, the website starts with everyday problems. Visit their website here.