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The curious case of the Belgian woman who thought she was a chicken

Doctors at KU Leuven University in Belgium recently reported the bizarre case of a 54-year-old woman who was convinced she was a chicken and temporarily behaved as such.
It is reported that the married woman, whose name was not revealed, had a stable job at a pharmacy and had no history of drug or alcohol abuse before the strange episode. One day, her brother found her clucking, blowing her cheeks and crowing like a rooster. Not knowing what to do, he took her to a nearby hospital, where the 54-year-old told doctors she thought she was a chicken and described feeling a new sensation in her legs.
The sudden episode of zoanthropy, a mental disorder in which one believes oneself to be an animal, ended when the woman suffered a seizure.
She appeared to be her old self again after that and she didn’t remember her short time acting like a chicken. The doctors’ report mentions that she was embarrassed when her family told her what had happened and why she was in the hospital.

Clinical zoanthropy, or the conviction of having turned into an animal, is a rare delusion,” KU Leuven researchers wrote. “There are different views about its pathogenesis. This delusion can occur with an underlying psychiatric disorder, but it can also be secondary to structural or functional disorders of the brain.
In this case, the only possible link was the depression the woman was apparently suffering from following the loss of a beloved family member, but that condition was prevalent among her other relatives as well.
According to the case study published in the Tijdschrift voor Psychiatrie journal, there have been only 56 case descriptions of zoanthropy episodes in medical and historical literature between 1850 and 2012. The limited research on this subject features testimonies of patients who though that they were a dog, lion, tiger, hyena, shark, crocodile, frog, bovine, cat, goose, rhinoceros, rabbit, horse, snake, bird, wild boar, gerbil and a bee.
Apparently, symptoms of zoanthropy can last from one hour to several decades, and cases are more prevalent in rural and non-industrial areas.

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