Start of dementia when not getting a joke

If some people began to show uncharacteristic credulity before ceasing to understand with the funny jokes, it can be an early sign of the onset of dementia. That is the conclusion drawn by researchers.

Many people do not see and do not understand sarcasm fine funny jokes . If they had never developed a sense of humor different, then there is nothing to worry about. But if a man previously appreciated good humor and take notice, suddenly ceased to understand jokes, and besides, began to show the amazing credulity, his family and friends need to sound the alarm. It is likely that this man manifested the first signs of one of the types of dementia.

That is the conclusion drawn by researchers from the University of California at San Francisco. "These people are unable to distinguish between a lie, - says neuropsychologist Katherine Rankin, author of the study. - This is a symptom that can help diagnose the onset of dementia at an early stage."

Man distinguishes truth from falsehood, cycling area of ​​the brain, located in the frontal area. When frontotemporal dementia   (one of the eight key types of the disease) - damaged proteins accumulate in this area of ​​the brain. Here comes the death of neurons.

In the study, doctors showed two groups of people (with and without dementia) videotaped interview people, which contained an obvious lies and sarcasm. A healthy group immediately identified the wrong, but in patients with frontotemporal dementia   diagnostics lie proceeded far less successful. However, patients with other types of dementia, such as Alzheimer's disease, cope with this test better.

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