Déjà vu is indeed a fascinating phenomenon, and your explanation provides some valuable insights into why it occurs. Here's a summary of the factors you mentioned that contribute to déjà vu:
Old Memories
Déjà vu can be triggered when a current experience resembles a past memory, even if that memory isn't consciously recalled. The familiarity arises from deep-seated memories.
Frequent Travel and Dreams
People who travel frequently or have vivid dreams may experience déjà vu because their experiences and dreamscapes may overlap with real-life situations.
Signal Delays
Occasionally, there can be minor delays in processing signals from both eyes, leading to the brain perceiving the same information twice in quick succession, creating a déjà vu sensation.
Short and Long-Term Memory
Some experiences may skip short-term memory and go directly into long-term memory. When the brain tries to process such memories, it can feel like a déjà vu moment.
Medical Factors
Certain medical conditions like epilepsy and the use of specific medications can also be associated with déjà vu.
It's important to recognize that déjà vu is generally a normal occurrence and not necessarily a cause for concern. However, if someone experiences it regularly or in association with other unusual symptoms, it may be advisable to consult a medical professional, as you mentioned.
Understanding the various factors contributing to déjà vu can help demystify this intriguing experience and provide individuals with a clearer perspective on why it happens.