Depression Flashcards
What is depression?
Depression is a type of mood disorder
Depression can occur in cycles, with an episode of depression generally lasting 2-6 months.
Depression is divisible into two main types:
unipolar depression
bipolar depression
What is unipolar depression (major depression)?
- Occurs without mania - sufferers only experience depression
-Diagnosis of unipolar depression: at least 5 symptoms must occur every day for 2 weeks, with an impairment in general functioning, not accountable for by other medical conditions/events i.e. mourning a loved one. - 1 of the 5 symptoms must be a constant depressed mood or lessened interest and pleasure in daily activities.
Emotional Characteristics of depression:
Constant Lowered (depressed) Mood:
- Overwhelming feelings of sadness/hopelessness.
- Individuals may also feel worthless, ‘empty’ and have reduced self-esteem, with some experiencing feelings of self-loathing.
Anger:
- (Extreme) anger directed at the self or others.
- On occasion such emotions lead to aggressive or self-harming behaviour.
Behavioural Characteristics of Depression:
Change in activity levels:
Increased lethargy (lack of energy)/withdrawal from activities that were once enjoyed (anhedonia);
Neglecting personal hygiene – reduced incidence of washing, wearing clean clothes, etc.
Disruption to sleep:
Sleep may reduce (insomnia) or increase (hypersomnia).
Disruption to eating behaviour:
Increased or decreased eating;
Weight gain or loss.
Aggressive acts:
Towards others or oneself (e.g. self-harm
Cognitive Characteristics of Depression:
Focusing on the negative aspects of a situation:
Paying more attention to negative aspects of a situation and ignoring the positives;
Negative self concept (negative self-beliefs);
A negative view of the world;
Negative expectations i.e. expecting things to turn out badly.
Reduced concentration:
- Difficulty in paying/maintaining attention &/or slowed down thinking & indecisiveness.
Recurrent thoughts of self-harm, death or suicide.
Unipolar Depression: Prevalence:
About 20% of people will experience some form of depression.
The average age of onset is the late twenties, but it can begin any time from adolescence onwards.
Women are twice as vulnerable as men:
Up to 25% of women will suffer from unipolar depression
Up to 12% of men will suffer from unipolar depression
What did Beck (1987) discover?
People become depressed because the world is seen negatively through negative schemas
Negative schemas are acquired during childhood, when authority figures place unreal demands on individuals and are highly critical of them.
They are activated when a person encounters a new situation that resembles the original conditions in which these schemas were learned.
Negative schemas lead to cognitive biases, which results in distorted/faulty thought patterns.
What are examples of cognitive biases?
Selective abstraction - conclusions drawn from an isolated detail of an event, without considering the larger context.
Overgeneralisation - sweeping conclusions drawn on the basis of a single event.
What is Beck’s negative triad?
- The Self - where individuals see themselves as being helpless, worthless and inadequate.
- The World - where obstacles are perceived within one’s environment that cannot be dealt with.
- The Future - where personal worthlessness is seen as blocking any improvements.
What maintains the negative triad?
Negative schemas, together with cognitive biases/distortions, maintain the negative triad:
What is Ellis’ ABC model?
Ellis believed that it is our irrational thoughts and interpretations of events that cause depression
Activating event: Something happens in the environment around you
Beliefs: You hold a belief about the event or situation
consequence: you have an emotional response to your belief
What is Mustabatory thinking?
Thinking that certain ideas/assumptions must be true in order for an individual to be happy
An individual who holds such assumptions is bound to be, at the very least, disappointed; at worst, depressed
Strengths of the cognitive approach to depression. P: Therapeutic success supports the cognitive approach to explaining depression.
E: Cognitive Behavioural Therapy (CBT) is found to be the most effective treatment for depression, especially when combined with drug treatments (Cuijpers et al., 2013).
(CBT identifies irrational and maladaptive thoughts/beliefs and restructures them into more adaptive and rational ones)
C: This suggests that irrational/negative thoughts have a role in causing the depression in the first place.
strength of the cognitive approach to depression. P: There is research support for the role of irrational thinking in depression.
E: Hammen & Krantz (1976) found that depressed participants made more errors in logic when asked to interpret written material than non-depressed participants.
C: This suggests that …
Limitations of the cognitive approach to depression. P: However, there is a cause-effect issue
E: The fact that there is a link between negative thoughts and depression does not mean that negative thoughts cause depression.
It may be that a depressed individual develops a negative way of thinking as a consequence of their depression i.e. the negative thoughts are a symptom of the depression.
C: This therefore undermines the validity of both Ellis and Beck’s cognitive explanations and suggests that there may be other causes. For example, the negative thoughts might have a biological cause e.g. low levels of serotonin.