Why do people experience hallucinations?

Lack of sleep, stress, grief, and trauma can make the brain more susceptible to hallucinations, due to the behavior of the sensory cortex and the wrong frontal lobe.

According to ABC News, hallucinations are quite common phenomena that people easily encounter in everyday life. It is a "false perception" of reality, appearing on the range of senses, but dissemination is visual and hearing hallucinations.

John McGrath, a professor at the Queensland Institute of Brain Research (QBI), Australia, said that nearly one in 20 people hear or see things that others cannot feel, in a state of complete alertness.

Usually, the brain is very good at distinguishing between sounds or images that are happening in the outside world and the sound and product images of the brain. But sometimes, exceptions still occur.

About 70% of healthy people experience hallucinations while sleeping.(Photo: Henry Fuseli).

According to Flavie Waters, professor of psychology and neurology at West Australia University, hallucinations occur when the connection between the frontal lobe of the brain and the sensory cortex is misleading.

For example, people with schizophrenia have auditory hallucinations when the auditory cortex is located, part of the brain is responsible for processing sounds, overacting. Similarly, people with Parkinson's disease have a visually active cortex, forming a bogus image. Neurologic drugs can also disrupt the relationship between the brain processing sensory and frontal lobes in the same way.

Hallucinations are not always negative and scary , even in the case of people with schizophrenia. About 70% of healthy people experience benign hallucinations when they are sleeping, for example hearing someone call their name, hear a phone ring or see someone sitting at the end of the bed.

"We are trying to find out whether hallucinations have many different forms or only one type, and the cause of distressing hallucinations in some specific cases , " Waters said.

Lack of sleep, stress, grief and trauma make the brain easy to fall into hallucinations . "When our brain works well, the brain is the driver of the car, it determines what happens and controls the rest of the brain. But when we lack sleep, stress, grief, lobe Waters ' tired, uncontrollable forehead, which makes the brain feel like it works in an undesirable way, creating hallucinations, " Waters said.