Alpha Methyl Phenylethylamines

Although rare, this condition can be seen in a variety of well-known disorders, including Lewy body dementia and schizophrenia.

Thought blocking is a neuropsychological symptom expressing a sudden and involuntary silence within a speech, and eventually an abrupt switch to another topic.[1] Persons undergoing thought blocking may utter incomprehensible speech; they may also repeat words involuntarily or make up new words.[citation needed] The main causes of thought blocking are schizophrenia, anxiety disorders, petit mal seizures, post-traumatic stress disorder, bradyphrenia, aphasia, dementia and delirium.[2]

A partition delusion is the belief that people, objects or radiation can pass through what would normally constitute a barrier to such passage. These

An enemy complex is in modern psychology a mental disorder in which a person falsely believes he or she is surrounded by enemies.[1] Additional disorders of the mind generally accompanied with an enemy complex include paranoia and low-self esteem.[2]

In psychiatry, thought withdrawal is the delusional belief that thoughts have been 'taken out' of the patient's mind, and the patient has no power over this.[1] It often accompanies thought blocking. The patient may experience a break in the flow of their thoughts, believing that the missing thoughts have been withdrawn from their mind by some outside agency. This delusion is one of Schneider's first rank symptoms for schizophrenia. Because thought withdrawal is characterized as a delusion, according to the DSM-IV TR it represents a positive symptom of schizophrenia.[2]

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Shared psychotic disorder is often read as case report but not studied in length and rarely looked at in common clinical practice in psychiatry. Only a small percentage of cases involve families. Folie a famille is characterized as a shared psychotic disorder within a family in more than two members …

Reduplicative paramnesia is the delusional belief that a place or location has been duplicated, existing in two or more places simultaneously, or that it has been 'relocated' to another site. It is one of the delusional misidentification syndromes; although rare, it is most commonly associated with acquired brain injury, particularly simultaneous damage to the right cerebral hemisphere and to both frontal lobes.

A syndrome which was first described by G.G. De Clerambault in 1885 is reviewed and a case is presented. Popularly called erotomania, the syndrome is characterized by the delusional idea, usually in a young woman, that a man whom she considers to be ...

Cotard delusion is a rare mental illness that causes people to believe they're dead. Learn more about the complications this can cause and treatment options.

Cotard delusion is a rare mental illness that causes people to believe they're dead. Learn more about the complications this can cause and treatment options.

On the "organicity" of paranoid syndromes

The present authors report the case of a 42-year-old female with Down's syndrome who developed a misidentification syndrome, erotomanic delusions towards her Bible instructor, and increasing grandiosity following the death of her father. The authors believe that her symptoms may be formulated in dev …

Contrasted five aspects of psychiatric inpatient care in two psychometrically distinct inpatient samples. The experimental (N = 35) and control groups (N = 35) differed in that the former Ss all scored higher WAIS VIQs than their respective PIQs by at least 15 units. The controls had WAIS VIQs that …

A case of a rare form of delusional misidentification, the Frégoli syndrome, is described. Although usually occurring in the setting of primary or secondary schizophrenic psychoses, delusional misidentification has been reported in affective, neurological, and toxic-metabolic disorders. In this inst …

We have no introspective knowledge of the effects of preconscious processing on our perceptions. We are, therefore, not aware that our expectancies may have prejudiced our perceptions. Expectancies tend to foster perceptions with which they are consonant. Therefore false expectations, driven by fals …

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Fregoli syndrome is the delusional belief that one or more familiar persons, usually persecutors following the patient, repeatedly change their appearance. This...