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a group of severe disorders characterized by disorganized and delusional thinking, disturbed perceptions, and inappropriate emotions and actions

positive symptoms

symptoms of schizophrenia involving behavioral excesses, such as hallucinations and delusions

negative symptoms

Things that people can't do anymore such as depression symptoms like not bothering to get up


false sensory experiences, such as seeing something in the absence of an external visual stimulus


false beliefs, often of persecution or grandeur, that may accompany psychotic disorders

delusions of persecution

a symptom of the paranoid type of schizophrenia which causes the sufferer to believe that people are trying to harm him

delusion of grandeur

an exaggerated false belief about one's importance, wealth, power, or talents

delusion of reference

delusion in which all events within the environment are referred by the psychotic person to himself or herself. ("someone is trying to get a message to me through the articles in this magazine; I must break the code so that I can receive the message")

catatonic schizophrenia

a form of schizophrenia characterized by a tendency to remain in a fixed stuporous state for long periods

neurodevelopmental hypothesis

Caused by abnormalities in prenatal or neonatal development of nervous system. Many schizophrenic children born during WW2, to starved women. Toxic exposure during pregnancy also an issue

antipsychotic drug

a medication administered to treat symptoms of severe disorders of thinking and mood that are associated with neurological and psychiatric illnesses such as schizophrenia, mania, and delusional disorders

dopamine hypothesis of schizophrenia

A leading neurochemical theory postulating that schizophrenia results from an excess of neurotransmitter activity.

glutamate hypothesis of schizophrenia

proposal that schizophrenia is due to deficient activity at certain synapses

tardive dyskinesia

An Incurable disorder of motor control, especially involving muscles of the face and head, resulting from long-term use of antipsychotic drugs

atypical antipsychotic drugs

drugs used to treat schizophrenia that cause fewer neurologic side effects involving movement

expressed emotion

a pattern of interactions that includes emotional over-involvement, critical comments, and hostility directed toward a patient by family members


sever reduction of emotional expression.

flat affect

A lack of emotional responsiveness

diathesis-stress model

suggests that a person may be predisposed for a mental disorder that remains unexpressed until triggered by stress

word salad

jumble of incoherent speech as sometimes heard in schizophrenia


1st generation antipsychotic; schizo, bipolar, drug of choice for Tourette's; dopamine antagonist; high potency

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