Schizophrenia Flashcards
What is Schizophrenia
A chronic mental disorder with periods of psychosis, disturbed behavior and thought, along with declining function
How long must the features of psychosis, disturbed behavior and thought, and decline n function last in order to be classified as Schizophrenia
More than 6 mos
Associated with what pathologic findings
Rise in Dopaminergic activity
Fall in dendritic branching
Dx of schizophrenia
2 or more of the following
Positive Symptoms
- Hallucinations
- Delusions
- Disorganized Speech
- Catatonic behavior
Negative Symptoms
- flat affect, social withdrawal, lack of motivation, lack of speech or thought
How do you define brief psychotic disorder
Transient psychosis that lasts less than a month, usually precipitated by stres
Schizophreniform disorder
1-6 months
Schizoaffective disorder
At least 2 weeks of stable mood with psychotic symptoms plus a major depressive, manic, or mixed episode
What are the 2 subtypes of schizoaffective diosrder
Depressive and bipolar
5 subtypes of schizo
- Paranoid (delusions)
- Disorganized (speech and behavior)
- Catatonic (automatisms)
- Undifferentiated (Elements of all types)
- Residual
What are hallucinations
Perceptions in the absence of external stimuli
Delusions are what
False beliefs about oneself or others that persist despite the facts ( Believing the CIA is following you around )
Types of hallucinations and their most common causes?
- Visual: More commonly a feature of medical illness ( drug illness) than psychiatric illness
- Auditory: More commonly a feature of psychiatric illness (schizophrenia) than medical illness
- Olfactory: Often occur as an aura of psychomotor epilepsy and in brain tumors….so, hearing think psychomotor epilepsy and brain tumors
- Gustatory: Rare
- Tactile: Seen in alcohol and cocaine use (cocaine crawlies) …feels like bugs crawling on the skin
- HypnaGOgic: occurs while GOing to sleep
- HypnoPOMPic: occurs while waking from sleep…pompous upon awaking
Schizophrenia is labeled as a psychotic disorder. What defines a psychotic disorder
A distorted perception of reality characterized by hallucinations, delusions, and disorganized speech and movement.
Delusional Disorder
Fixed, persistent, belief system lasting more than 1 month. Functioning otherwise not impaired…..a woman gneuinely believes she is in a close relationship with someone when she is not.
Catatonia
Severe psychomotor disturbance….very serious potentially