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1. • • An imbalance of certain chemicals in your brain, called neurotransmitters, has been linked to the formation of delusional symptoms. Environmental and psychological factors: Evidence suggests that delusional disorder can be triggered by stress. Alcohol use disorder and substance use disorder might contribute to the condition.
     my.clevelandclinic.org/health/diseases/9599-delusional-disorder

     Delusional Disorder: Causes, Symptoms, Types & Treatment

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   Does delusional disorder affect brain function?

   • The main finding was a significant increase in lateral ventricular volume in patients with delusional disorder compared with both the healthy controls and the patients with schizophrenia. On the same grounds, it would be of interest to know whether delusional disorder is associated with brain functional changes.

   Structural and functional brain changes in delusional disorder

   www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/structural-and-functional-brain-changes-in-delusional-disorder/4C4D1B01C68D86FB4A56F776C0A41CDC

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   Is delusional disorder associated with brain structural abnormalities?

   • As a disorder that shares clinical features with, and may sometimes progress to, schizophrenia, it would be of interest to know whether delusional disorder is associated with the kind of brain structural abnormalities seen in this and other psychiatric disorders.

   Structural and functional brain changes in delusional disorder

   www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/structural-and-functional-brain-changes-in-delusional-disorder/4C4D1B01C68D86FB4A56F776C0A41CDC

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   What does a person with delusional disorder do?

   • Persecutory: People with this type of delusional disorder believe someone or something is mistreating, spying on or attempting to harm them (or someone close to them). People with this type of delusional disorder may make repeated complaints to legal authorities.

   Delusional Disorder: Causes, Symptoms, Types & Treatment

   my.clevelandclinic.org/health/diseases/9599-delusional-disorder

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   What are delusions & how do they affect a person?

   • Delusions are more than just occasional odd thoughts. They’re persistent, often bizarre beliefs that can dramatically alter a person’s perception of reality. These beliefs aren’t simply eccentric or unconventional views; they’re convictions held with absolute certainty, immune to logical reasoning or contradictory evidence.

   Delusional Behavior: Signs, Causes, and Treatment Options

   neurolaunch.com/delusional-behavior/

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   What causes delusional symptoms?

   • An imbalance of certain chemicals in your brain, called neurotransmitters, has been linked to the formation of delusional symptoms. Environmental and psychological factors: Evidence suggests that delusional disorder can be triggered by stress. Alcohol use disorder and substance use disorder might contribute to the condition.

   Delusional Disorder: Causes, Symptoms, Types & Treatment

   my.clevelandclinic.org/health/diseases/9599-delusional-disorder

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3. www.cambridge.org › core › journalsStructural and functional brain changes in delusional disorder

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   This study found that patients with delusional disorder showed a pattern of structural and functional brain changes affecting the medial frontal/anterior cingulate cortex and the insula.

   • Author: Victor Vicens, Joaquim Radua, Raymond Salvador, Maria Anguera-Camós, Erick J. Canales-Rodríguez, Sal...

   • Publish Year: 2016

4. my.clevelandclinic.org › health › diseasesDelusional Disorder: Causes, Symptoms, Types & Treatment

   my.clevelandclinic.org › health › diseases

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   • What Is Delusional Disorder?
   • What Are The Types of Delusional Disorder?
   • What Is The Difference Between Delusional Disorder and Schizophrenia?
   • Who Does Delusional Disorder Affect?
   • How Common Is Delusional Disorder?
   • What Is The Most Common Type of 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-biz...

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   There are different types of delusional disorder, which are determined based on the main theme of the delusions the person experiences. The types of delusional disorder include: 1. Erotomanic: People with this type of delusional disorder believe that another person, often someone important or famous, is in love with them. They may attempt to contac...

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   Schizophreniais a spectrum (or range) of conditions that involve psychotic symptoms, which include: 1. Disorganized speech or behavior. 2. Negative symptoms (a decrease in emotion in a person’s facial expressions and motivation). Delusional disorder is different from schizophrenia because there aren’t any other psychotic symptoms other than delusio...

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   Delusional disorder most often occurs in middle to late life, with the average age of onset being 40 years. The persecutory and jealous types of delusional disorder are more common in people assigned male at birth (AMAB), and the erotomanic type is more common in people assigned female at birth (AFAB). People who tend to be socially isolated are mo...

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   Although delusions might be a symptom of more common disorders, such as schizophrenia, delusional disorder itself is rather rare. Approximately 0.05% to 0.1% of the adult population has delusional disorder.

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   The most common type of delusional disorder is the persecutory type — when someone believes others are out to harm them despite evidence to the contrary.

   See full list on my.clevelandclinic.org

5. www.ncbi.nlm.nih.gov › pmc › articlesDopamine, Serotonin, and Structure/Function Brain Defects as ...

   www.ncbi.nlm.nih.gov › pmc › articles

   Oct 19, 2021 · Delusional disorder (DD) is classified as a psychosis, a psychiatric condition characterized by reality being experienced in an aberrant way. DD is diagnosed when persistent delusional beliefs last for at least one month.

   • Author: Armand Guàrdia, Alexandre González-Rodríguez, Mary V. Seeman, Aida Álvarez, Francesc Estrada, Sidhar...
   • DOI: 10.3390/bs11100141

   • Publish Year: 2021
   • Publication: Behav Sci (Basel). 2021 Oct; 11(10): 141.

6. neurolaunch.com › delusional-behaviorDelusional Behavior: Signs, Causes, and Treatment Options

   neurolaunch.com › delusional-behavior

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   Sep 22, 2024 · Simple tasks can become Herculean challenges. Relationships strain under the weight of misplaced suspicion or grandiose claims. Work performance may suffer as focus shifts to addressing imagined threats or pursuing impossible goals. The Many Faces of Delusional Behavior. Delusions come in various flavors, each with its own unique twist on reality.

7. www.cambridge.org › core › journalsCognition and functionality in delusional disorder

   www.cambridge.org › core › journals

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   Even if neurocognition is known to affect functional outcomes in schizophrenia, no previous study has explored the impact of cognition on functionality in delusional disorder (DD). We aimed to assess the effect of clinical characteristics, symptom dimensions and neuropsychological performance on psychosocial functioning and self-perceived ...

   • Author: Covadonga M. Díaz-Caneja, Jorge A. Cervilla, Josep M. Haro, Celso Arango, Enrique de Portugal

   • Publish Year: 2019

8. pubmed.ncbi.nlm.nih.gov › 26382955Structural and functional brain changes in delusional disorder

   pubmed.ncbi.nlm.nih.gov › 26382955

   The findings provide evidence of brain abnormality in the medial frontal/anterior cingulate cortex and insula in delusional disorder. A role for the former region in the pathogenesis of delusions is consistent with several other lines of evidence.

9. www.verywellmind.com › delusional-disorderDelusional Disorder: Symptoms, Causes, and Treatment

   www.verywellmind.com › delusional-disorder

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   Nov 20, 2022 · Delusional disorder is a psychotic disorder that can make it hard for a person to distinguish between what’s real and what’s imagined to be true. The primary symptom of this condition is the presence of delusions , which are irrational, unshakeable beliefs that are untrue.