Depression (PSYCHOPATHOLOGY 3/4) Flashcards
depression
mental disorder characterised by change in mood, typically low mood
DSM-5
diagnostic and statistical manual used to diagnose patients
DSM-5 depression criteria
five or more symptoms during same two week period
at least one should be depressed mood or loss of interest and pleasure
nearly every day
symptoms must cause individual clinically significant distress or impairment in social, occupation or other important areas of functioning
must not be a result of substance abuse or medical condition
behavioural characteristics
ACTIVITY LEVELS - reduced levels of energy, lethargy, withdrawing from work, education, social life, prevent getting out of bed, can lead to psychomotor agitation - struggle to relax
DISRUPTION TO SLEEP AND EATING - insomnia, premature waking, hypersomnia, appetite increase or decrease, weight loss or gain
AGGRESSION AND SELF-HARM - irritable, aggressive, affects work and relationships, physical aggression towards themselves, self-harm, suicide attempts
emotional characteristics
LOWERED MOOD - defining emotional element, more pronounced that daily lethargy or sadness, worthlessness, empty
ANGER - more negative emotions than positive, at self or others, aggression or self-harm
LOW SELF-ESTEEM - how much like ourselves, far as self-loathing
cognitive characteristics
POOR CONCENTRATION - unable to stick with a task, hard to make decisions, likely to interfere with work
ATTENDING TO AND DWELLING ON THE NEGATIVE - more attention on negative aspects of situation, bias to recalling unhappy events
ABSOLUTIST THINKING - situations as all good or all bad ‘black and white thinking’, when unfortunate, see as disaster
Ellis’ ABC Model, 1962 (cognitive approach to explaining depression)
emotions and behaviour were due to faulty cognition
mistakenly blame external events when it is interpretation of events to blame
poor mental health as result of irrational thinking
explains how irrational thinking/beliefs can negatively impact emotions and behaviour, causing depression
ABC model steps
ACTIVATING EVENT - something happens externally e.g. fail test
BELIEFS - event triggers belief or irrational thoughts about situation e.g. believe they are unintelligent
- utopianism –> life should be perfect
- musturbation –> meet perfectionist targets before success and comfort
CONSEQUENCES - emotional and behavioural consequences follow belief e.g. start to feel worthless, diminished interest in studying, quitting
ABC model strengths
real world application, development of treatments
REBT is effective, must be some truth in model, helps patients recover, credible and useful
evidence for role of irrational thinking
Hammen and Krantz depressed patients made more errors in logic when interpreting written material
shows activating event is able to trigger irrational beliefs leading to errors
increase validity of model
unnatural task may lead to errors - unrepresentative of how act in real world, decrease validity
ABC model weaknesses
only explains reactive depression, not all cases can be traced back to life events or environment
some patients unsure why they are depressed
activating event isn’t crucial to depression
may be endogenous (come from within the person), reducing validity of theory
discounts neurotransmitters
bio explanation is monoamine hypothesis - depression is result of low levels of serotonin and noradrenaline
more than just faulty cognition
reductionist, too simplistic
Beck’s Negative Triad, 1967 (cognitive approach to explaining depression)
depression caused by early experiences which affect thinking
schemata
schemata built from early interactions and experiences - patterns of maladaptive thoughts and beliefs formed
mood product of pessimistic schema held about world
develop during childhood - trauma and unhappy experiences
negative cognitive triad
negative beliefs formed about
- themselves (worthless, useless)
- world/environment (overwhelming, full of obstacles)
- future (hopeless)
cognitive bias / distortions
negative schemas fuelled by cognitive biases (person with depression will think in negative way)
- trigger or event later in life will help confirm earlier negative beliefs / schemas
- existing dysfunction beliefs are activated
reinforcement of negative beliefs
person with negative schemas will concentrate on information relevant to those schemas
lead to reinforcement of negative beliefs
thinking has affect on all aspects of person - feel, physical, behaviour, symptoms of depression