Flashbacks are intrusive memories that can plague people after a traumatic incident. Now there's a possibility that playing certain kinds of computer games in the hours after the traumatic event could prevent images flashing back into the mind when they're not wanted. Emily Holmes at Oxford University wants to develop what she calls a cognitive vaccine. This would be used in the hours straight after an event - not as a treatment for post traumatic stress disorder, but to prevent disturbing memories from taking root.

Taste and Music: Professor Charles Spence is the Head of the Crossmodal Research Laboratory based at Oxford University and is investigating how the brain can match up sounds and tastes. And one restaurant in Switzerland is making music a crucial part of the dining experience with specially-composed tunes accompanying each course.

Therapeutic Design: Most people with dementia want to stay in their own homes for as long as possible, provided they can cope. Researchers from Stirling University have found that the adoption of simple design tricks can extend that period at home. The university's Dementia Services Development Centre has designed a dementia-friendly home and Director Professor June Andrews told Claudia that it's all about trying to see a home from the point of view of the person with dementia.

Producer Geraldine Fitzgerald.