Psychosis Flashcards
Definition of delusion
A fixed false belief that is firmly held despite evidence of the contrary
Goes against the individuals normal social and cultural beliefs
Definition of hallucination
Perception in the absence of an external stimulus
Causes of psychosis
Schizophrenia Schizotypal disorder Schizoaffective disorder Persistent delusional disorder Mood disorder with psychosis Post partum psychosis
What is schizotypal disorder
No hallucinations or delusions
Eccentric behaviour
Unusual speech
Suspiciousness
What is schizoaffective disorder
Mood symptoms meet criteria of either a depressive illness or manic episode WITH 1 or 2 symptoms of schizophrenia
Definition of schizophrenia
Condition characterised by:
Hallucinations, Delusions, Thought disorders, Fragmentation of boundaries of the self
Leads to functional impairment and is not due to organic disease, alcohol/drugs, a mood disorder.
What are the negative symptoms of schizophrenia
Avolition - reduced ability to initiate and persist in goal directed behaviour
Asocial behaviour
Anhedonia
Poverty of speech - decrease in speech output
Blunted affect
Types of delusions
Persecutory Grandiose Nihilistic Guilt Reference
Describe formal thought disorder
Problem of speech where there is no connection between flow of thoughts
Examples of disorders of boundaries of the self
Thought insertion
Thought withdrawal
Thought broadcast
Passivity phenomena
Schneiders first rank symptoms
Hear own thoughts spoken aloud Running commentary 3rd person hallucination in statement and reply Tactile hallucination Thought interference Delusion Passivity
Types of schizophrenia
Paranoid
Hebephrenic - thought disorganisation
Catatonic - reduced or excessive motor activity
Simple - negative symptoms without positive
Undifferentiated - doesn’t conform to subtype
Residual - 1 year of negative symptoms following psychotic episode
ICD10 criteria for diagnosing schizophrenia
At least 1 month of
1 of - thought interference, passivity, running commentary, delusions
OR
2 of - hallucinations other than running commentary, loose associations, catatonic symptoms, negative symptoms
Management of schizophrenia
BIOPSYCHOSOCIAL MODEL
Antipsychotics ECT for catatonic Family therapy Psycho education CBT Support groups Mental health act
What are catatonic symptoms
Reduced or excessive motor activity
