Zapping brains of people with epilepsy can trigger memories of old dreams gmutlu/getty

People with epilepsy sometimes recall old dreams during seizures. Now a study has found that stimulating a particular part of their brains with electricity can also make this happen.

“I saw something, a dream – a nightmare I had a couple of years ago. An object on a table,” said one person analysed in the study.

This phenomenon is called déjà-rêvé, which means “already dreamed”. While déjà-vu is a feeling of familiarity for a new situation, déjà-rêvé seems to be much …