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The epidemiology of child psychiatric disorders is the study of the incidence, prevalence, and distribution of conditions in child and adolescent psychiatry. Subfields of pediatric psychiatric epidemiology include developmental epidemiology, which focuses on the genetic and environmental causes of child psychiatric disorders.
Paranoid personality disorder (PPD) is a mental disorder characterized by paranoia, and a pervasive, long-standing suspiciousness and generalized mistrust of others. People with this personality disorder may be hypersensitive, easily insulted, and habitually relate to the world by vigilant scanning of the environment for clues or suggestions that may validate their fears or biases.
Risk factors for mental illness include psychological trauma, adverse childhood experiences, genetic predisposition, and personality traits. [7] [8] Correlations between mental disorders and substance use are also found to have a two way relationship, in that substance use can lead to the development of mental disorders and having mental disorders can lead to substance use/abuse.
The cause of delusional disorder is unknown, [8] but genetic, biochemical, and environmental factors may play a significant role in its development. [ better source needed ] Some people with delusional disorders may have an imbalance in neurotransmitters , the chemicals that send and receive messages to the brain. [ 18 ]
Individuals who experience disorders such as major depressive disorder, schizoaffective disorder, schizophreniform disorder, brief psychotic disorder, delusional disorder and schizotypal personality disorder have all been known to exhibit similar symptoms to children who have been diagnosed with CS. [53]
In object relations theory, the paranoid-schizoid position is a state of mind of children, from birth to four or six months of age. Melanie Klein [2] has described the earliest stages of infantile psychic life in terms of a successful completion of development through certain positions. A position, for Klein, is a set of psychic functions that ...
[22] [23] Paranoia perceptions and behavior may be part of many mental illnesses, such as depression and dementia, but they are more prevalent in three mental disorders: paranoid schizophrenia, delusional disorder (persecutory type), and paranoid personality disorder.
Cluster A personality disorders are characterized by odd and uncommon thinking or behavior. This includes paranoid personality disorder, schizoid personality disorder and schizotypal personality disorder. Cluster B : Disorders are distinguished by overly emotional behavior leading up to unpredictable thinking/behavior, and being overly dramatic.