communication

"Especially with its focus on the lack of communication between father and son," she told BBC News.

"Disorders such as attention deficit, sensory hypersensitivity, or some forms of traumatic brain injury may partly originate from imbalances between cortical communication and these fundamental circuits."

CD28, found on the surface of T cells, acts as a signaling receptor that supports immune cell activation and communication.

In a call lasting several minutes, she ended up speaking to the trust's communications manager - telling her she thought she was Madeleine.

"It is a wonderful piece of science communication. People around the world have always been fascinated by the immense power of volcanoes."