The study states déjà rêvé happens in three different
ways. In one, referred to as “episodic-like,” a patient is spontaneously able
to specify that they had a certain dream on a definite date.
“‘I saw something, a dream, a nightmare I had a couple
years ago. A dream of an object lying on a table,” said one subject about their
The second is referred to as “familiarity-like,” or when
a patient reminisces of a vague dream. One subject explained that they had a
vision of a scene from a recent dream.
Lastly, researchers found many patients in their
literature experienced a “dreamy-state.” They would have a feeling of being in
a dream, or nightmare. A subject tried to explain it as feeling like they
passed out and floating.