Schizophrenia Flashcards
How does the DSM - V define hallucinations?
- perception-like experiences occurring in the absence of an external stimulus
- occurring in absence of hypnogogia and hypnopompic experiences
What percentage of patients with schizophrenia report experiencing hallucinations?
75%
What hallucinations have the highest percentage experienced?
- 60- 70% experience auditorry hallucinations
What are the typically experienced auditory hallucinations?
- running commentary
- criticizing and condemning (persecutory hallucinations)
- command hallucinations (33-74% experience instructions to harm themselves)
What are risk factors for hostility in schizophrenia?
- substance abuse
- non compliance with medications
- younger males with hx of violence
- hx of aggression/violence
Significant part is that because of the delusions cannot be predicted when and where they’ll occur
What is a delusion?
- falsely held belief despite what others believe and despite evidence to the contrary
- beliefs not culturally accepted
How are delusions usually categorised?
- by their content and bizareness
e. g. thought withdrawal, delusion of control, thought insertion, thought broadcasting
What is paranoid/persecutory delusions?
- beliefs others are acting to harm of plot against them
- patient heightened state of threat and hypervigilant to perceived threat
What is a delusion of reference?
- patients believe that personal messages are being conveyed via neutral sources (e.g. coded messages via tv news)
What is a grandiose delusion?
- belief one has special powers, abilities, influence, achievements or another identity that typically relates to power, wealth or fame
- also common in manic episodes
What is a nihilistic delusion?
- belief that one is dead or parts of body no longer exist
What is a somatic delusion?
- false belief that one’s organs are (diseased); infested with insects (parasitosis); anatomy is disfigures (dysmorphobia)
What is the passivity phenomena?
- belief that patient is under the control of another person’s force
What are delusions of guilt?
- cause of significant events (e.g 9/11; aids)
What are jealousy delusions?
- belief that one’s partner has been unfaithful (e.g. evidence via coded messages)