The invention helping a little girl find her lost memories
Ten-year-old Aman can't remember special moments and struggles to follow lessons at school - she's had severe memory loss since she was injured in a car accident.
But computer scientist Haiyan Zhang has found a way to help bring back her memories.
This is one of three stories featured in Big Life Fix: Children in Need Special on BBC Two at 21:00 on Wednesday 8 Nov. Viewers in the UK can also catch up later online.