Cat parasite mind control? Or why I have a dog instead.

How Your Cat Is Making You Crazy – Magazine – The Atlantic.

Flegr’s thinking is jarringly unconventional. Starting in the early 1990s, he began to suspect that a single-celled parasite in the protozoan family was subtly manipulating his personality, causing him to behave in strange, often self-destructive ways. And if it was messing with his mind, he reasoned, it was probably doing the same to others.

The parasite, which is excreted by cats in their feces, is called Toxoplasma gondii (T. gondii or Toxo for short) and is the microbe that causes toxoplasmosis—the reason pregnant women are told to avoid cats’ litter boxes. Since the 1920s, doctors have recognized that a woman who becomes infected during pregnancy can transmit the disease to the fetus, in some cases resulting in severe brain damage or death. T. gondii is also a major threat to people with weakened immunity.

But if Flegr is right, the “latent” parasite may be quietly tweaking the connections between our neurons, changing our response to frightening situations, our trust in others, how outgoing we are, and even our preference for certain scents. And that’s not all. He also believes that the organism contributes to car crashes, suicides, and mental disorders such as schizophrenia. When you add up all the different ways it can harm us, says Flegr, “Toxoplasma might even kill as many people as malaria, or at least a million people a year.”

Source: The Atlantic

Are humans a dead end for this parasite or are we “vulnerable to its manipulations?” It’s not clear yet. Even if more evidence is found that more of us do carry the parasite, there are many complicating social factors that are involved. These are touched on in the article which suggests that any effects from the parasite may be very subtle. However, also suggested is that they could be significant in terms of slight increases in car accidents or genetic susceptibility to schizophrenia. Many studies have been replicated. But, this is curious. And you know what they say about curiosity…

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  4 comments for “Cat parasite mind control? Or why I have a dog instead.

  1. Zim
    February 11, 2012 at 5:41 PM

    I have a theory that cats themselves are the parasites.

    • idoubtit
      February 11, 2012 at 8:36 PM

      Or controlling minds in various ways…

  2. February 11, 2012 at 7:11 PM

    I’m still keeping my cat. Even the article says they’re OK as long as they’re kept indoors.

  3. Massachusetts
    February 12, 2012 at 3:49 PM

    I don’t know about the validity of the claims, but it makes for an interesting novel or movie.

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