Table of contents:
- Dejavu because temporal lobe seizure
- Dejavu due to malfunctioning brain circuits
- Dejavu because of work rhinal cortex
Dejavu is a condition where you feel familiar with the conditions around you, as if you have experienced it in exactly the same situation, even though what you are experiencing right now may be your first experience. This event can last 10 to 30 seconds, and more than once. If this happens to you, you don't need to panic, because according to some studies, two to three people who have experienced déjà vu will experience it again.
Dejavu aka "déjà vu" comes from French which means "having seen". This title was first coined by Émile Boirac, a French philosopher and scientist in 1876. Many philosophers and other scientists have tried to explain why dejavu happened. According to Sigmund Freud, the occurrence of dejavu is related to latent desire. Meanwhile, according to Carl Jung, dejavu is related to our subconscious.
A definite explanation for the reasons for déjà vu is difficult to find because the study of dejavu itself is not easy to do. Researchers can only hold on to someone's retrospective déjà vu experience so that it is difficult to find stimuli that trigger dejavu.
However, there are several theories that might answer why you experience dejavu:
Dejavu because temporal lobe seizure
Cause temporal lobe seizure aka temporal lobe spasms sometimes go unnoticed. However, trauma to the brain, infections, strokes, brain tumors, to genetic factors can cause it temporal lobe seizure. When having an attack, sufferer temporal lobe seizure may experience decreased ability to respond to the surrounding environment to do the same activity over and over again such as clicking the tongue or moving the fingers unnaturally. Before this attack comes, usually the sufferer temporal lobe seizure will experience strange sensations such as feeling unreasonable fear, hallucinations, and dejavu.
Dejavu due to malfunctioning brain circuits
Intermediate malfunction may occur long term circuits and short term circuits in our brains. When the brain digests the environment, the information obtained can be directly transferred to the part of the brain that holds long-term memory. This causes us to feel dejavu, as if we have seen and felt the events we are experiencing now in the past.
Dejavu because of work rhinal cortex
The section called rhinal cortex in our brain functions to detect familiarity. This section may be activated without triggering the work of the hippocampus (the part of the brain that functions as memory). This could explain why when we experience dejavu, we can't remember exactly when and where we've had the same experience.
Dejavu is more frequently reported by sufferers temporal lobe seizure and people with epilepsy. What causes dejavu to occur in normal, healthy individuals is not clear.
