![]() ![]() Some are so intense you might realize you have never experienced them, even if you consider yourself a déjà vu veteran. Zeman says that even though we tend to lump déjà-vu-like experiences together, researchers are now distinguishing between different kinds of déjà vu. (From this particular patient, Zeman says, we may have learned that serotonin is involved in the genesis of déjà vu the drugs she was taking were serotonergic, and they triggered the episodes.) We brush it off in our daily lives but déjà vu, says Adam Zeman, a clinical neurologist at the University of Exeter in the UK, can be a window into the many ways our brain regulates memory, familiarity, and other related processes. You pause and bask in the strangeness, then move on-perhaps not to feel it again for months or years. We know déjà vu as a weird fleeting moment. People who travel regularly and people who remember their dreams are more prone to déjà vu. It’s more common at night than in the morning. ![]() People report more déjà vu the more years of education they’ve had. It can be triggered by fatigue or emotional stress and is most frequent in our 30s, tapering off after that. It’s thought to be very common, having occurred in between 30 and 96 percent of the population, and usually lasts only seconds. I did not have any eerie type of feeling, I knew I couldn’t know these things but I felt like I did.”ĭéjà vu is French for already seen. “I had the same feeling of having seen and done all of this before. “Since the doctor did not think it was the pills, I decided to try again,” she wrote. Instead, the woman was having an extreme, and long-lasting, episode of déjà vu. I asked her why she was telling me this again as she had told me this several days before.”īut her sister hadn't told her that before, and there hadn't been a power outage at the school a few days earlier. “I then got a phone call from my sister to tell me the kids were being sent home as there was a power cut at school. “When I watched TV, I felt I was watching repeats, although I knew I wasn’t, as it was the news,” she wrote at the time (her account was later documented in a 2007 case report). ![]()
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