Exam 2 Flashcards
What are psychotic disorders?
Characterized by unusual thinking, distorted perceptions and odd behaviors
Do hallucinations and delusions indicate the presence of schizophrenia?
No
What is prevalence rate of schizophrenia?
1%
What is delusions of influence?
Beliefs that others control one’s behavior or thoughts
What are persecutory delusions?
most common, belief that someone is harming/attempting to harm the person
What is waxy flexibility?
parts of the body (usually the arms) remain frozen in particular posture when positioned that way by another person
When does early onset schizophrenia occur?
Disorder begins in childhood, adolescence
What are negative symptoms of schizophrenia?
behaviors, emotions, thought processes that are absent in people with schizophrenia
What is avolition?
ability to follow through with plans
What is alogia?
decreased quality or quantity of speech
What is a brief psychotic disorder?
sudden onset of any psychotic symptom, such as delusions, hallucinations, diorangized speech, catatonic behavior
How long does brief psychotic disorder typically last?
1 day to 1 month
What neurotransmitter is associated with schizophrenia?
dopamine
What are the brain abnormalities in those with schizophrenia?
increased ventricles, decreased gray matter
What is synaptic pruning?
eliminates weaker synaptic connections, strengthens already strong ones and occurs at a faster rate for those with schizophrenia