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what is hebephrenic schizophrenia characterised by?
- changes in affect
- thought disorder
- behaviour that is aimless or disjointed
what role do hallucinations and delusions have in hebephrenic scz?
- they don't dominate the clinical picture
- they are quite fragmented
which type of person specifically does hebephrenic scz tend to be diagnosed in?
adolescents or young
in hebephrenic scz do pts tend to develop pos or neg symptoms?
- negative symptoms
- socially isolated
which is the type of scz where delusions and hallucinations are prominent?
paranoid scz (delusions pertain to the individual) eg persecutory, grandiose, love
what is simple scz?
- progressive development of ODDITIES of social behaviour, social withdrawal
- delusions and hallucinations not evident
- its the least psychotic type of scz
- get lots of negative symptoms eg apathy, blunting of affect, lack of initiative and drive
how long do the symptoms of simple scz have to be around for it to be diagnosed?
what is the ICD10 criteria for diagnosis of schizophrenia?
- symptoms for at least 1 months
- at least one:
- thought interference
- auditory hallucinations
- delusional perception
- passivity phenomena
- delusion of control
- persistent delusions
- at least 2 of:
- persistent hallucinations in any form
- formal thought disorder eg incoherent speech, neologisms
- catatonic symptoms
- negative symptoms
- decrease in social functioning
give some features of bipolar affective disorder?
- grandiose delusions
- pressured speech
- flight of ideas
what is catatonic scz dominated by?
psychomotor disturbances which may fluctuate between extremes of excitement and hyperkinesis to stupor and mutism
what is residual schizophrenia?
chronic stage in schizophrenic illness where there is a clear progression from an active psychotic phase to a chronic negative phase
what are the similarities between simple and residual schizophrenia?
both marked by a negative phase
what is the difference between simple and residual scz?
residual is always preceded by an active psychotic phase
how is schizotypal disorder different to scz?
- lacks hallucinations and delusions
- but transient psychotic experiences may occur
what are the characteristics of schizotypal disorder?
- ideas of reference
- odd beliefs
- eccentric appearance and speech
- inappropriate affect
- social anxiety