Define deviance
• Extent to which behaviour is rare, uncommon and breaks social norms. (Hearing
voices).
• Refers to thoughts, emotions and behaviours that don't fit in accepted norms of
society or specific culture
• Failure to comform with social norms = negative attention and social exclusion.
(Burping loudly next to a stranger).
Define distress
• Extent to which behaviour causes psychological harm. (Hearing voices may be
upsetting to individual)
• Abnormality in mental health is accompanied by negative feelings (depression - you
tend to be anxious), thus distress is strong indicator to abnormalities/ mental health
issues.
• Includes pains, aches, fatigue, etc. Normal after losing a job or bereavement
• Clinicians consider intensity/duration of distress, using quantitative self-report
measures (K10 - focusing on experiences in past 4 weeks).
Define dysfunction
• Extent to which behaviour interferes with daily functioning. (Hearing voices may
give insomnia; prevents you from getting typical sleep patterns).
• Important in defining abnormality and diagnoses as dysfunction must occur in more
than one part of person's life for diagnosis.
• Psychologists use variety of objective measures (WHODAS II questionnaire), looking
at factors like decrease in self-care.
• But, dysfunctional behaviour can be deliberate and doesn't own its own signal
disorders.
Define danger
• Extent to which behaviour causes harm to individual or to others. (Hearing voices
telling you to hurt yourself/others).
, • In UK, if a person is perceived to be dangerous in public or private places, they can
be detained under Mental Health Act. Requires agreement of 3 professionals.
• Clients can be taken without consent; taken to a mental health hospital for
treatment.
Evaluation
Strengths of the 4Ds
• Has practical applications, useful for professionals when considering when a
patient's symptoms or issues become a clinical diagnosis. Less mistakes = high
reliability.
• Different combinations of 4Ds can lead to useful diagnosis, model is flexible
Weaknesses of 4Ds
• Distress is hard to mesaure as a person may be unable to function, but doesn't
experience feelings of distress.
• Subjective - reliability issues, if 4Ds used by different professionals, they may not
come to same conclusion
• Davis - discusses 5th D - duration, referring to length the individual has symptoms.
5th D = 4Ds insuffcient in themselves, which is a criticism.
Carlsson et al.
Aim of the study
• To present a review of evidence for/against dopamine hypothesis of SZ.
• Explore new antipsychotics for ppl who are 'treatment-resistant'
Results of study
• Evidence from PET support dopamine hypo
• Scans show amphetamine enhances SZ-like symptoms in ppl with SZ more than
healthy controls.
• Laurelle et al - found SZ patients in remission only had normal dopamine activity.
• Dopamine neurons are affectedc by glutamatergic neurons acting as 'accelerators'
or a 'brake'. Shows dopamine and glutamate interact
Conclusions of the study
• There may be different groups of Sz patients whose symptoms have different bio
causes.
• It may be lack of glutamate that leads to more responsiveness to dopamine.
, Strengths of the study
• + Representative - Carlsson partook in 14/34 studies cited.
• + Reliable - all studies cited are lab exps - used brain scans, many on animals which
are objective, standardised and replicable.
• + Can be used for development of new antipsychotics.
Weaknesses of the study
• - Low generalisability - several studies were animal exps, can't be generalised to
humans
• - Time-locked - no longer generalisable to today's society as scientific knowledge
had advanced since 2000
• - Brain scans may not have valid results. Being scanned is stresseful and affects
'normal' functioning
• - Mice are being injected with drugs to bring psychotic symptoms
Case studies
Describe case studies
• Explores one event, group of ppl or person in depth
• In-depth data is collected
• Qualitative data is main data collected
• Qualitative data can be turned into quantitative by counting instances of certain
themes
• May include case history, record of individual's previous experiences
Strengths of case studies
• + Useful for studying unusual behaviour
• + Produces rich, in-depth data - complex interactions of many factors can be studied
Weaknesses of case studies
• - Difficult to generalise from individuals/groups since each one has unique
characteristics
• - Recollection of past events may be unreliable due to inaccuracy of ppl's memories
Describe Lavarenne et al study
• Aim - to describe how a group can provide a firm boundary within which individuals
can explore their own fragile ego boundaries
• Conclusion - therapists observed that the session report showed impressive amount
of tolerance, acceptance, and containment from group members.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller nehan2. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.98. You're not tied to anything after your purchase.