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Symptoms of schizophrenia such as delusions are extreme versions of cognitive processes that can be greatly beneficial. Such symptoms that are at the undesirable extreme of normality, however, result in more harm than benefit. Timothy Crow hypothesizes that schizophrenia is closely related to human language development. [7]
The delusion most commonly occurs in individuals diagnosed with a psychotic disorder, usually schizophrenia, [4] but has also been seen in brain injury, [5] dementia with Lewy bodies, [6] (Such as a case of a 83 year-old woman who presented Capgras syndrome while experiencing dementia with Lewy bodies) [7] and other forms of dementia. [8]
Schizophrenia is a mental disorder [17] [7] characterized variously by hallucinations (typically, hearing voices), delusions, disorganized thinking and behavior, [10] and flat or inappropriate affect. [7]
In psychology, schizotypy is a theoretical concept that posits a continuum of personality characteristics and experiences, ranging from normal dissociative, imaginative states to extreme states of mind related to psychosis, especially schizophrenia. The continuum of personality proposed in schizotypy is in contrast to a categorical view of ...
A person with this delusional belief is convinced of the veracity of their beliefs and is unwilling to accept such diagnosis. [6] Thought insertion is a common symptom of psychosis and occurs in many mental disorders and other medical conditions. [1] However, thought insertion is most commonly associated with schizophrenia.
Emil Kraepelin (1856–1926). The Kraepelinian dichotomy is the division of the major endogenous psychoses into the disease concepts of dementia praecox, which was reformulated as schizophrenia by Eugen Bleuler by 1908, [1] [2] and manic-depressive psychosis, which has now been reconceived as bipolar disorder. [3]
The following case describes a patient who has been diagnosed with schizoaffective disorder along with multiple delusional misidentification syndromes (subjective doubles, Capgras delusion, intermetamorphosis): Taken from Silva et al., 1994: [10] "Mr. B believed that five physical copies of himself existed. Each copy had a different mind than ...
Neurologically, Cotard's syndrome (negation of the self) is thought to be related to Capgras delusion (people replaced by impostors); each type of delusion is thought to result from neural misfiring in the fusiform face area of the brain, which recognizes faces, and in the amygdalae, which associate emotions to a recognized face. [13] [14]
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related to: which best describes delusions of schizophrenia related to the brain