Delusion definition psychology

  1. Delusional Disorder: Causes, Symptoms, Types & Treatment
  2. Delusional Disorder
  3. The Psychology of Delusions
  4. Delusions: Definition, Signs, Types, Causes, Management
  5. Delusion (Stanford Encyclopedia of Philosophy)
  6. Delusions: Types, Themes, Causes, Diagnosis
  7. Delusion Definition & Meaning


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Delusional Disorder: Causes, Symptoms, Types & Treatment

Overview What is delusional disorder? Delusional disorder is a type of psychotic disorder. Its main symptom is the presence of one or more delusions. A delusion is an unshakable belief in something that’s untrue. The belief isn’t a part of the person’s culture or subculture, and almost everyone else knows this belief to be false. People with delusional disorder often experience non-bizarre delusions. Non-bizarre delusions involve situations that could possibly occur in real life, such as being followed, deceived or loved from a distance. These delusions usually involve the misinterpretation of perceptions or experiences. In reality, these situations are either untrue or are highly exaggerated. Non-bizarre delusions are different from bizarre delusions, which include beliefs that are impossible in our reality, such as believing someone has removed an organ from your body without any physical evidence of the procedure. People with delusional disorder often continue to socialize and function well, apart from the subject of their delusion. Generally, they don’t behave in an odd or unusual manner. This is unlike people with other psychotic disorders, who might also have delusions as a symptom. In some cases, however, people with delusional disorder might become so preoccupied with their delusions that their lives are disrupted. What are the types of delusional disorder? There are different types of delusional disorder, which are determined based on the main theme of the delusio...

Delusional Disorder

Delusions are fixed beliefs that do not change, even when a person is presented with conflicting evidence. Delusions are considered "bizarre" if they are clearly implausible and peers within the same culture cannot understand them. An example of a bizarre delusion is when an individual believes that his or her organs have been replaced with someone else's without leaving any wounds or scars. An example of a non-bizarre delusion is the belief that one is under police surveillance, despite a lack of evidence. Delusional disorder refers to a condition in which an individual displays one or more delusions for one month or longer. Delusional disorder is distinct from schizophrenia and cannot be diagnosed if a person meets the criteria for schizophrenia. If a person has delusional disorder, functioning is generally not impaired and behavior is not obviously odd, with the exception of the delusion. Delusions may seem believable at face value, and patients may appear normal as long as an outsider does not touch upon their delusional themes. Also, these delusions are not due to a medical condition or There are several different types of delusional disorders, and each type captures a particular theme within a person's delusions. • Erotomanic: An individual believes that a person, usually of higher social standing, is in love with him or her. • Grandiose: An individual believes that he or she has some great but unrecognized talent or insight, a special • • Persecutory: An individual ...

The Psychology of Delusions

Source: Piotr Marcinski/Shutterstock We talk often about "deluded" people: “The person on the talent show is clearly deluded about their lack of singing ability.” “That politician has delusions of grandeur.” “She's deluded if she expects to be promoted.” "You have to be deluded to believe anything salesmen say.” A delusion is a belief held by an individual or group that is demonstrably false, patently untrue, impossible, fanciful, or self-deceptive. A person with delusions, however, often has complete certainty and conviction about their delusory beliefs. They resist arguments and evidence that they are wrong. Psychiatrists may diagnose someone as having a delusion disorder under a number of very specific situations: • A person must manifest one or more non-bizarre delusions for at least a month. • The person has not met other behavioral criteria to be classified as someone with schizophrenia. • Audio and visual hallucinations are not prominent, though tactile and olfactory hallucinations may be. • Despite the person's delusions or their behavioral consequences, their psychosocial functioning is not essentially impaired enough to be considered particularly odd or bizarre. • If the specific delusions impact a person’s mood, these fluctuations do not last very long. • The disturbance is not the result of physiological or medical conditions, like the Sometimes psychiatrists say it is difficult to distinguish from other disorders like hypochondriasis (particularly among those ...

Delusions: Definition, Signs, Types, Causes, Management

Delusions are beliefs that persist despite evidence to the contrary. They are often associated with mental illnesses such as schizophrenia, bipolar disorder, or severe depression. People with delusions may believe that they are being persecuted, monitored, or controlled by external forces or that they have special abilities or powers. These beliefs can be distressing and disruptive to daily life. Treatment may include therapy and medication to manage symptoms and improve overall well-being. Delusions could result from misinterpreting events, or they may involve some level of paranoia. Delusions can be either bizarre or non-bizarre. Bizarre delusions are characterized as beliefs about something that can never happen, e.g., the belief that an individual has been abducted and cloned by aliens. Non-bizarre delusions, however, are beliefs that could be true, such as the belief that an individual is being stalked, that someone is in love with them, or they are being cheated on by a spouse. Delusional disorder is a condition that is characterized by non-bizarre delusions that involve the misinterpretation of an experience or a perception. People diagnosed with delusional disorder can experience realistic delusions, such as believing they are being deceived or conspired against, but these are usually highly exaggerated or untrue. The onset of delusional disorder is typically in the middle to later life but can occur at any time. It is also more common in women than men. Often with...

Delusion (Stanford Encyclopedia of Philosophy)

This entry focuses on clinical delusions. Although the nature of delusions is controversial, delusions are often characterised as unusual beliefs that appear in the context of mental distress. Indeed, clinical delusions are a symptom of psychiatric disorders such as dementia and schizophrenia, and they also characterize delusional disorders. They can be associated with depression and obsessive compulsive disorder as well. The following case descriptions include an instance of erotomania, the delusion that we are loved by a person of higher status; an instance of Cotard delusion, the delusion that we are dead or disembodied; and a delusion of persecution, the belief that someone intends to cause us harm. She realized he was empty without her and was pursuing her, but enemies were preventing them from uniting. The enemies included a number of people: people in her family, her classmates, neighbours and many other persons who were plotting to keep them apart. She knew that her conclusions were accurate because he would send messages to her proving his love. These messages would often present themselves as the license plates on cars of a certain state, the color purple and other indications that she received from the environment that proved to her that he loved her. (Jordan et al. 2006, p. 787) She repeatedly stated that she was dead and was adamant that she had died two weeks prior to the assessment (i.e. around the time of her admission on 19/11/2004). She was extremely dist...

Delusions: Types, Themes, Causes, Diagnosis

Karl Jaspers was the first to define delusions based on the criteria of certainty, incorrigibility, and impossibility or falsity of the belief. Phillip Johnson-Laird defined delusions as failure to distinguish conceptual relevance, meaning irrelevant information is accepted as relevant. The definition of “delusions” continues to evolve. • Bizarre delusions are implausible or impossible, such as being abducted by aliens. • Non-bizarre delusions could actually occur in reality, such as being cheated on, poisoned, or stalked by an ex. • Mood-congruent delusions are consistent with a depressive or manic state, such as delusions of abandonment or persecution when depressed, and delusions of superiority or fame when manic. • Mood-incongruent delusions are not affected by the particular mood state. They may include delusions of nihilism (e.g., the world is ending) and delusions of control (e.g., an external force controls your thoughts or movements). • Capgras delusion: This is the belief that a loved one like a mother or sibling has been replaced by an imposter. • Cotard delusion: This occurs in Cotard’s syndrome, and is characterized by the belief that you are dead or your body or body parts have disintegrated or no longer exist. • Delusion of control: This refers to the belief that an external entity is controlling your thoughts, behaviors, and impulses. This entity may be an individual like a manager, a group, or some undefined force. • Delusion of grandiosity: This is an exa...

Delusion Definition & Meaning

Recent Examples on the Web Baker’s intriguing historical novel explores how the strain of wartime living can tip the balance between sanity and delusion, and how forging friendships can be a lifeline. — Becky Meloan, Washington Post, 1 May 2023 In the end, he’s left with only paranoia of the CIA and delusions of deliverance while anchored down by the addictive despair he’s inflicted on his city. — Andre Gee, Rolling Stone, 20 Apr. 2023 The guidelines also advise seeking immediate help if a person is experiencing hallucinations or delusions. — Laura Newberry, Los Angeles Times, 28 Mar. 2023 The main purpose of this monstrous, though imaginary, plot was to seduce American presidents into the delusions of détente. — Tim Weiner, The New Republic, 27 Mar. 2023 Dallas police have said the May shooting was hate-motivated, pointing to delusions that the gunman reportedly had about Asian Americans. — Hojun Choi, Dallas News, 28 May 2023 Sib has hands full right now with the partner’s delusions of grandeur. — Carolyn Hax, Washington Post, 28 Mar. 2023 Some examples of delusions of reference include: tattoos, song lyrics, specific items of clothing, and social media posts. — Naydeline Mejia, Women's Health, 9 Mar. 2023 Plot details are still under wraps, but Folie à Deux references a delusion or mental illness shared by two people, suggesting that Joker and Harley may be up to no good together. — Jen Juneau, Peoplemag, 6 Mar. 2023 See More These examples are programmatically compiled...