Final answer:
Déjà vecu is an intense form of déjà vu where an individual believes they are reliving an experience with detailed recollections of the event, including emotional contexts and specifics.
Step-by-step explanation:
Unlike déjà vu experiences, déjà vecu experiences involve a feeling that one has experienced something before and the individual has detailed recollections of the event including contexts, emotions, and specific details that make the experience feel like it is being relived. Déjà vu, on the other hand, is simply a fleeting sensation of familiarity with a current situation without the intricate memory details. In the case of déjà vecu, a person may not just feel that they have seen something before but also believe that they can predict what will come next based on this intense recollection.