What Are Grandiose Delusions?

Grandiose delusions and sensory hallucinations may be symptoms of a psychotic episode.
Delusional individuals are usually fixed in their beliefs and may not believe that they have a mental disorder.
Grandiose delusions may be symptomatic of a psychotic disorder.
Natural talent might fuel grandiose delusions.
A psychotic episode may occur after a traumatic event.
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  • Written By: Lee Johnson
  • Edited By: John Allen
  • Last Modified Date: 22 November 2015
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Grandiose delusions are beliefs a person holds that would mean he or she is somehow better or more important than anybody else, where in reality it isn’t true. Many different types of grandiose delusions exist, and despite their diversity, they all stem from a dissociation with reality. A man could have grandiose delusions, for example, if he believes that other people talk about or pay special attention to him. This belief could be related to an inability to interpret social signals correctly, or it could be massively delusional — for example, if he believes he holds some mystical power over others. Often, grandiose delusions could be a symptom of a wider psychotic disorder or episode.

The most basic definition of grandiose delusions is that they refer to any belief unfounded in reality or likelihood that makes the person holding them believes he or she is in some or all ways better than everybody else. A person could believe that he is a genius or has the power to read other people’s thoughts. This could also manifest itself as a belief that some kind of higher power thinks that he is important, or has presented him with a special mission or ability. Some grandiose delusions are simply based on the misinterpretation of social cues: for example, the belief that a person is being stalked because he happens to live and work in the same area as another person.


Social cues can be picked up and interpreted correctly by most people. For example, if a man were to spark up a conversation with a woman about her life, the average woman would take this as a general interest or friendliness. A woman suffering from grandiose delusions may take this to mean that the man is actually in love with her. This is because the woman has an inflated sense of her own importance, and may have trouble believing that the conversation isn’t related to the fact that she is special.

Not all grandiose delusions are so simple or easily understood. Some people can believe wild things that have no basis in reality. For example, a person might believe that he or she has the ability to contact or revive the dead, or that he or she is in charge of a country. These types of grandiose delusions rarely have any basis in reality, and can be thought of as a more serious psychological problems for that reason.

People who frequently believe things that aren’t true are often suffering some classified mental illness. For example, grandiose delusions are a symptom of schizophrenia, alongside other things such as an inability to focus attention and mood swings. As well as this, delusions of grandeur could also be a symptom of a psychotic episode. This is essentially when a person loses grip on his or her sanity for a short period of time.


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Post 3

We are talked about grandiose delusions in class this week.

Apparently, grandiose delusions are very common. It is the second most common type of delusion and affects people suffering from various different types of psychological disorders such as bipolar disorder and schizophrenia. Some of them actually have basis in physical disorders like Parkinson's disease or even vitamin deficiencies. So any condition affecting the function of the brain can actually lead to this type of delusion. It doesn't necessarily have to be a sign of a mental disorder.

Obviously, grandiose delusions are unhealthy, but they do have some benefits as well. For example, it boosts an individual's self esteem greatly. And some people actually develop it as a natural response to extremely low self esteem and depression. It can actually be very destabilizing to treat someone's grandiose delusions and can harm a person's psychology much more than the delusions.

Post 2

@bluedolphin-- I'm not a doctor or expert, so I'm not qualified to answer this but I don't think that they are the same.

Although those with narcissistic personality disorder may act as though they are better than everyone else, they don't really believe in it. Those with excessive narcissism actually suffer from low self-esteem and behave the way they do to make up for it.

Someone with grandiose delusions on the other hand, sincerely believes that he or she is better. And the person's view of themselves will be highly exaggerated and unrealistic.

Post 1

Grandiose delusions sound a lot like narcissistic personality disorder. Are they the same thing?

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