Decoding confused duck syndrome of dogs?

Although most of us draw a flawless duck, but still accurate, a few people sketched him into four legs and even more . eyebrows.

These people suffer from a familiar form of insane disorder between concepts such as "birds" and "dogs ", and will create the most bizarre drawings. That is because they severely damaged the brain storage area meaning.

Researchers from the University of Manchester (UK) have finally resolved the 150-year-old debate, by pointing out the true location of this brain region. They think it is the brain cavity under the ear, called the temporal lobe.

The former team has speculated that temporal lobes are related to this disorder. Their doubts are based on photographs showing people with dementia (confused even simple concepts like "cars" and "fork") lose tissue in the aforementioned brain region. . But so far this conjecture has not been recognized, because those patients also have brain damage in other areas.

By deliberately slowing the activity of temporal lobes in volunteers with normal brains, the team has shown it to play a role in storing meaning.

Semantic insanity

Semantic dementia is the second most common form of dementia in people under 65 years of age."For these patients, it is not about the words being removed from the dictionary, so today you know about the duck, and tomorrow is forgotten. Instead, information about the animal gradually fades away. go, and you suspect what the duck looks like, but can't describe it exactly , " said Professor Matthew Lambon Ralph, from the University of Manchester.

Symptoms are most obvious when patients are asked to draw pictures. First, a patient is asked to copy a picture directly in front of her. She did it pretty well. But when it comes to painting the same picture after 10 seconds or 60 seconds after observing the original picture, the patient begins to confuse the concepts of duck with other animals.

Such patients do not connect certain tastes or sense of touch with specific objects. For example, if they smell lemons, they don't associate with what creates that scent.

T. An