Below are some of the more widely accepted theories. Most agree it likely relates to memory in some way. You might feel a bit unsettled but quickly brush off the experience.Įxperts suggest several different causes of déjà vu. The sensation may be so fleeting that if you don’t know much about déjà vu, you may not even realize what just happened. What’s more, déjà vu experiences tend to end as quickly as they begin. Researchers can’t easily study déjà vu, partially because it happens without warning and often in people without underlying health concerns that might play a part. (It’s probably not a glitch in the Matrix.)Įxperts do, however, have a few theories about the most likely underlying causes. While déjà vu is fairly common, especially among young adults, experts haven’t identified a single cause. There’s no conclusive evidence on how common it actually is, but varying estimates suggest anywhere between 60 and 80 percent of the population experience this phenomenon. Although déjà vu can accompany seizures in people with temporal lobe epilepsy, it also occurs in people without any health issues. You might feel a little disoriented and wonder what’s going on, especially if you’re experiencing déjà vu for the first time. Or perhaps you’re exploring a new city for the first time and all at once feel as if you’ve walked down that exact tree-lined footpath before. You’ve never done anything like it, but you suddenly have a distinct memory of making the same arm motions, under the same blue sky, with the same waves lapping at your feet. Say you go paddleboarding for the first time. A healthcare professional, often a neurologist, can conduct various tests, such as EEG (electroencephalogram) and imaging studies, to diagnose and determine the appropriate course of treatment.“Déjà vu” describes the uncanny sensation that you’ve already experienced something, even when you know you never have. If someone experiences seizures or shows symptoms suggestive of epilepsy, it is crucial to seek medical attention promptly. Diagnosis typically involves multiple seizures over time. It's important to note that experiencing a single seizure doesn't necessarily mean a person has epilepsy. Tonic-clonic movements: These seizures often involve muscle stiffening (tonic phase) followed by rhythmic jerking (clonic phase).Īutomatisms: In complex partial seizures, individuals may engage in repetitive, involuntary movements such as lip-smacking, chewing, or fidgeting. ![]() Memory lapses: Some people may have difficulty remembering the events leading up to or following a seizure. Temporary confusion: After a seizure, individuals may experience a period of confusion, disorientation, or fatigue. Uncontrollable movements: Seizures can involve convulsions, repetitive movements, or unusual postures. This is more common in generalized seizures. Loss of consciousness: In some seizures, individuals may lose awareness or consciousness. Auras can vary and may include feelings of déjà vu, strange tastes or smells, visual disturbances, or emotional changes. ![]() Partial (focal) seizures: Affecting only a specific part of the brain, these can be simple partial seizures (with no loss of consciousness) or complex partial seizures (with altered consciousness).Īura: Some individuals with epilepsy experience a warning sign or sensation known as an aura before the onset of a seizure. Generalized seizures: Affecting the whole brain, these can be tonic-clonic seizures (formerly known as grand mal seizures), absence seizures, myoclonic seizures, or atonic seizures. ![]() Seizures can manifest in different ways, and there are several types, including: Seizures: The hallmark symptom of epilepsy is the occurrence of seizures. Here are some general symptoms associated with epilepsy: The symptoms of epilepsy can vary widely from person to person, and the type and intensity of seizures can also differ. Epilepsy is a neurological disorder characterized by recurrent, unprovoked seizures.
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