How can we characterize cognitive processes, such as memorizing, taking decisions, or seeing something? Furthermore, what is the impact of age, stress or diet on such cognitive abilities? Cognitive decline during ageing can affect emotion regulation but emotion can help cognition in older age. It is essential that we understand the range, nature and impact of these factors both in the individual and in society. The answers to these questions are essential for implementing good social policy. CINN undertakes research into these fundamental issues by investigating the neural mechanisms involved.