Week Ten - Psychosis/Schizophrenia Flashcards
Positive symptoms?
ADDED Hallucinations Delusions Bizarre behaviour Positive formal thought disorder
Negative symptoms?
SUBTRACTED Disturbances in the logical process of thoughts - speech and behaviour Alogia Affective flattening Avolition-apathy Anhedonia-asociality Attentional impairment
Disorganisation syndrome?
Includes chaotic speech, thoughts and behaviour
5 key features of psychosis?
- Hallucinations
- Delusions
- Disorganised thinking (speech)
- Grossly disorganised or abnormal behaviour (catatonia)
- Negative symptoms
SCHIZOPHRENIA DSM-5 criteria?
A. Need to have 2 or more of the following - for most of one month - with at least one being one of the top 3 Delusions Halluncinations Disorganised speech Disorganised or atatonic behaviour Negative symptoms
B. Level of functioning in one or more areas (work, self care) is below the level achieved prior to onset
C. Persists for at least 6 months (including one month of symptoms that meet the first point)
D. Schizoaffective disorder and depressive or bipolar disorder have been ruled out (no depressive or manic episodes have occurred)
E. Not attributable to a substance or another medical condition
Delusions?
Strange beliefs that are maintained despite evidence to the contrary
Can people with schizophrenia rationalise their delusions?
Some people, particularly high functioning people, can rationalise their delusional beliefs
BUT it may be a constant struggle because while they can rationally see that their belief is not supported by evidence, it just doesn’t ‘feel’ right
Hallucinations?
Perception in the absence of sensory stimulation
May be: Auditory Visual Somatic/tactile Olfactory
Not just like imagining someones voice - like you are hearing actual voices.
Disorganization symptoms?
Means disturbances in the logical process of thought - apparent in speech and behaviour
Positive thought disorder
Bizzare behaviour
Inappropriate affect
Positive formal thought disorder?
Derailment Tangentiality (go off on tangents) Incoherence Illogicality Circumstantiality Pressure of speech Distractable speech Clang associations (grouping words together)
Bizarre behaviour?
Bizarre clothing and appearance
Bizarre social and sexual behaviour
Aggressive and agitated behaviour
Repetitive or stereotyped behaviour
Alogia? (NS)
Poverty of speech
Affective blunting? (NS)
unchanged facial expressions, poor eye contact
Avolition apathy? (NS)
Poor grooming and hygiene
Anhedonia-asociality? (NS)
Decrease in recreational interests and activities, sex interest, intimacy and closeness
Factors promoting good prognosis?
Late onset Obvious precipitating factors Acute onset Good premorbid functioning Married (if male) Fewer psychotic episodes
Factors promoting poor prognosis?
Young onset No precipitating factors Insidious onset Poor premorbid functioning Withdrawn single/divorced negative symptoms inconsistent use of medication
Bio-psycho-social Model of schizophrenia
Genetic (family history - inheritance of certain genes)
Neuro-development (perinatal, obstetric complications)
Environmental/social (childhood trauma, low SES, urban areas, substance use)
Psychological (biases, maladaptive self/schemas)
Cognitive Model Schizophrenia?
Distorted information processing - biases Jumping to conclusions - decision making Bias against disconfirmatory evidence - difficulty engaging from faulty interpretations Impaired social cognition - TOM
medications are the?
cornerstone of management
First Generation Antipsychotics (FGA)?
oral or depot
none or proven efficacy
80% respond but commonly left with side effects eg muscle problems
Second Generation Antipsychotics (SGA)?
ATYPICAL
Blocks D1 not D2 receptor
Positive effects on cognitive symptoms
Weight gain is side effect
Third Generation Antipsychotics (TGA)?
Partial against D2 receptors
Minimal weight gain, glucose intolerance
Psychs role on schizo?
Provide safe, secure base
Coping mechanisms that reduce stress
CBT
CBT of positive symptoms in schizo?
Cognitive therapy of positive symptoms
- belief and cognitive modification for delusions
- focusing of hallucinations
- normalising symptoms
CBT of neg symptoms in schizo?
Psychoeducation
Re-engaging with meaningful life goals via activity scheduling
Important thing to include in schizo intervention?
Family to reduce expressed emotion