Hallucinations are images that occur without a corresponding external stimulus. And they can affect any human sense. For example, auditory hallucinations are when we hear sounds or voices that are not actually there.
Often people confuse hallucinations and delusions. But it’s not the same. Delusions are beliefs a person holds despite evidence to the contrary. These ideas can lead to hallucinations.
Until now, scientists already knew which parts of the human brain become active when they experience hallucinations.
Hallucinations can indicate serious mental health problems. For example, one of the criteria for diagnosing schizophrenia is just hallucinations. They can also occur with depression, bipolar disorder, post-traumatic stress disorder.
It is known that hallucinations can also be associated with other diseases. This is a fever, illness, or brain/optic nerve damage. It is known that 75% of people with Parkinson’s disease experience visual, auditory and tactile hallucinations. Migraine, epilepsy, and substance use are also associated with hallucinations.
People may experience hallucinations due to intense grief or stress, lack of sleep, or being placed in a soundproof room.
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Source: Ferra
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