schizophrenia spectrum Flashcards
ideas of refernece
belief that cues in external environment are related to individual
delusions of control
thought broadcasiting and insertion
somatic delusions
belief that one is infected with a disease or certain illness
illusion
misinterpretation of existing sensory stimulus
hallucination
sensory perception w/o external stimulus
delusion
fixed false idiosyncratic belief
duration criteria for schizophrenia
must have sx for at least 6 mo
schizophrenia DSM5
2 or more of the following present for at least 1 month (at least one must be the first 3): delusions hallucinations disorganized speech catatonic behavior negative sx
duration for schizophreniform
1-6 mo
duration criteria for brief psychotic disorder
<1 mo
what causes neg sx in schizophrenia
inadequate dopaminergic activity in prefrontal cortex
what causes positive sx in schizophrenia
excessive dopaminergic activity in mesolimbic cortex
Neurotransmitter abnormalities in schizophrenia
inc dopamine inc serotonin inc NE dec GABA dec glutamate receptors
Schizophrenia better prognostic factors
later onset good social support positive sx mood sx acute onset female gender few relapses good premodbid functioning
Schizophrenia worse prognostic factors
early onset poor social support negative sx FH gradual onset male gender many relapses poor premorbid functioning comorbid substance use