schizophrenia - 1.3 Flashcards
Psychological explanations for schizophrenia: family dysfunction and cognitive explanations, including dysfunctional thought processing
cognitive explanation for SZ
SZ symptoms are caused by dysfunctional mental processes
types of dysfunctional mental processes
dysfunctional attention
dysfunctional reasoning
dysfunctional attention
easily distracted and tend to focus attention on irrelevant details
types of dysfunctional reasoning
jumping to conclusions bias
persecution bias
dysfunctional reasoning
bias in the way they gather information, interpret events and develop beliefs
jumping to conclusions bias
tendency to make hasty decisions based on insufficient evidence
persecution bias
tendency to believe they are being singled our and unfairly treated
how are delusions caused according to the cognitive explanation?
dysfunctional attention causes patients to overfocus on small, irrelevant details of events and coincidences
seem more important than they are
dysfunctional reasoning makes explanation irrational, causing delusional belief
how are hallucinations caused according to the cognitive explanation?
dysfunctional attention causes people to overfocus on things they imagine
overfocus causes events to begin to feel real
struggle to tell difference between things they imagined and reality, causes hallucinations
how are negative symptoms caused according to the cognitive explanation?
patients become overwhelmed by abnormal experiences e.g. delusions
want to avoid their abnormal experiences
isolate themselves from outside world
leads to negative symptoms
cognitive explanation study support
comes from O’Carroll
reviewed studies on people with SZ and people who were at risk of developing SZ
75% patients displayed dysfunctional mental processes
people who went on to develop SZ already had dmp before they showed any symptoms
dmp may have caused symptoms
cognitive explanation limitation (ignores biological factors)
e.g. role of genetics and antipsychotics
Gottesman and Sheilds found that the concordance rate in MZ twins was 74%, for DZ twins it was 24%
antipsychotics reduce dopamine activity
ignores biological factors
3 family dysfunction explanations
schizophrenogenic mother
double-bind theory
expressed emotion
family dysfunction explanation for SZ
family conflict leads to stress and confusion in individuals
this causes development of positive and negative symptoms
schizophrenogenic mother explanation
idea that a toxic, negative and dysfunctional mother can contribute to development of SZ
how does the father need to behave in the
schizophrenogenic mother explanation?
passive and ineffectual
not very involved
traits of a schizophrenogenic mother
cold
rejecting
controlling
creates tense family atmosphere
what type of explanation is schizophrenogenic mother?
psychodynamic
why is schizophrenogenic mother psychodynamic?
it is based on a patient’s current internal conflict having its roots in aversive childhood experience
what does schizophrenogenic mother’s behaviour lead to?
distrust, paranoia, delusions and development of SZ
double-bind theory
a situation where no matter what a child does, they can’t win
they receive mixed messages and inconsistent standards are imposed on them
e.g. being told off one day for not doing something, then being told you’re wasting time another day for doing it
what could a child caught in a double-bind develop?
paranoia and disorganised thoughts
what may parents in a double-bind withdraw?
their love and approval as a punishment for perceived wrongs
expressed emotion
how a family member communications their thoughts and feelings towards the schizophrenic person in their family
hostility towards the schizophrenic person e.g. anger
criticism of schizophrenic person e.g. open judgement
over involvement in life