What is the ICD-11 and what is it used to identify?
The international classification of diseases 11th edition is used to classify many different diseases from mental to measles
Give 10 symptoms of unipolar depression
Low mood
Loss of interest and pleasure
reduced energy levels
changes in sleep patterns
chanfes in appetite levels
decrease in self confidence
reduced concentration and attention
feeling guilty and unworthy
bleak and pessimistic view of the future
ideas of self harm and suicide
What are the 3 main symptoms of unipolar depression
Low mood, reduced energy levels, lack of motivation to do things
How many symptoms do you need for a diagnosis of unipolar depression?
1 main symptoms and 1 other symptoms (or 4 symptoms) most of the time for at least 2 weeks
What is the difference between bipolar and unipolar depression
Bipolar depression is when one has extreme highs (mania) and lows (depression).
Unipolar is just depression. There is also unipolar mania but it’s not on the specification.
Give the diagnosis amount of symptoms for mild, moderate and severe unipolar depression
Mild: 4 symptoms displayed and the patient will be able to carry on with daily activities
Moderate: 5-6 symptoms displayed and the patient may have serious problems doing day to day activities such as going to school
Severe: 7+ symptoms and general feelings of worthlessness. The patient may have suicidal thoughts or engage in self harm to cope with their feelings
What is the difference between a feature and a symptoms
Symptom: things that appear in patients
Feature: statistics
Give some features of depression
Suggest why some features of depression may be inaccurate
False reporting or just different proportions of people reporting their depression. Men are more likely to keep quiet, which is why it may seem like less men have depression
There has been a large increase in diagnosis of teens with depression. What could be the reason for this increase?
Social media usage where comparison, cyberbullying and (hateful) comments are there no matter where you go. A generally more stressful, uncertain life.
Give some effects depression has on the individual vs society as a whole
Individual: increased risk of suicide, patients miss time from work and feel more worthless, cost of treatment if they pay for their own treatment, damage to relationships, difficulties coping with day to day life, negative impact on physical wellbeing
Society: patients miss time from work which reduces productivity and economic growth, cost of treatment when the government pays for it, the need for more social care, increased crime rates
Explain the cognitive theory of depression
The cognitive theory states that behaviour can be explained by looking at how the brain processes information and therefore how we think. It basically says that faulty and irrational thinking causes depression, and the mindset determines the consequence
What are the 3 things in Beck’s cognitive triad?
Negative views about oneself, the world and the future
Give and explain the 3 stages of Ellis’ ABC model
Activating event - An event that reinforces a belief, usually negative eg. you fail an exam
Belief - the mindset caused or reinforced by the activating event eg. I’m stupid
Consequence - the result of the belief influencing the person’s actions eg. they fail again because they didn’t feel like revising would work
What does CBT stand for?
Cognitive behavioural therapy
What is the aim of respectively the cognitive and behavioural part of CBT
cognitive - changes the way one thinks
behavioural - changes the way one behaves
What are the 4 steps of CBT
How often and for how long might you recieve CBT?
Once a week for about an hour for 3-4 months
What is the difference between monozygotic and dizygotic twins?
Monozygotic twins - twins from the same sperm and egg. They share 100% of the same genes
Dizygotic twins - 2 seperate sperms that happened to be fertilised around the same time in the same womb. They share around 50% of the same genes, the same as any other siblings
Fill in the blanks: A study by Peter McGuffin found that if one MZ twin became depressed there was a __% chance that the other twin would also develop _______. However, if a DZ twin became depressed, there was only a __% chance that the other twin would also develop depression. This shows that depression might be ____ because the mZ twins who share more _____ than the D twins were at greater risk of becoming depressed if one of them was diagnosed.
46%
Depression
20%
Genetic
Genes
What is the diathesis stress model?
The diathesis stress model suggests than some people have more of a genetic predisposition to become depressed than others, but it must be triggered by a stressful life event
Define:
1. Seretonin
2. Gene
3. Longitudinal Study
Give the aim for Caspi
Aim: to find out why stressful life events seem to lead to depression in some people and not others. Also to investigate whether stressful life events were more likely to lead to depression in people with a certain variation of the 5HTT gene (a gene linked to the amount of seretonin available in the brain)
Give the sample and percentages for Caspi
Sample: 847 members of the Dunedin (Scotland) multidisciplinary health and developement study, seperated based on what version of the 5HTT gene they had
Group 1 (2 copies of the short version): 17%
Group 2 (one short and one long): 51%
Group 3 (2 copies of the long version): 31%