L10 Emotion Dysfunction Flashcards
What is an affective disorder?
A mental disorder characterised by sudden changes or extremes of affect. It involves significant distress and impaired functioning.
It can include episodes that are manic and/or depressive
How do we classify affective disorders?
ICD-10
DSM-5
Use diagnostic symptoms and are usually determined by interviews - individuals have to meet defined criteria for defined period
Alternative method would be to use a continuum
What are the symptoms of depression?
Unbearable sadness, loss of pleasure in activities for 2 weeks, sleep problems, lack of energy, can’t concentrate, feeling worthless/guilt, suicidal thoughts
What are the 4 unipolar subtypes?
Atypical depression (reactive)
Melancholy (loss of pleasure)
Post-partum depression
Seasonal Affective Disorder
They require 5 symptoms
What does non-major depression include?
Dysthymia (low daily mood for long periods) and brief recurrent episodes <2 weeks
Requires 2-4 symptoms
What are the symptoms of bipolar disorder?
Elevated, expansive or irritable mood, inflated self-esteem, decreased sleep need, racing thoughts, distractible, and risk taking
Hypomanic is briefer, not psychotic and less impairment
How do we classify bipolar I?
One or more manic episodes with or without a major depressive episode
Typical year = 32% weeks depressed, 9% weeks manic/hyper-manic
How do we classify bipolar II?
Hypomanic and depressive episodes
Typical year = 50% weeks depressed, 1% weeks hypomanic
What are the symptoms of anxiety?
Overwhelming fears, anxiety, avoidance of fears, loss of confidence
What are the different types of anxiety?
GAD Panic disorder Phobias Obsessions and compulsions PTSD
What are childhood externalising disorders?
Involve anger, hostility and aggression e.g. oppositional defiant disorder and conduct disorder
What are childhood internalising disorders?
Involve depression, anxiety and withdrawal e.g. depression, anxiety disorder
What are the prevalences of disorders in children?
Externalising disorders more common in younger children, and boys show these externalising behaviours more at all ages compared to girls
Anxiety disorder shows 9 fold increase from ages 3-8 and is more common in girls
Depression rate increases with age, equally likely in girls and boys until late adolescence and then its higher in girls
What are the prevalences of disorders in adults?
Major Depression is seen in 21% of women and 13% of men in a lifetime and is more likely in Western countries - is this due to better diagnostic systems?
30% of women and 19% of men have an anxiety disorder in their lifetime
There is a prevalence of 1% in bipolar disorder and no gender differences
What is the stress-diathesis hypothesis?
Davidson & Neale (2001)
Diathesis = predisposition or vulnerability to the disorder
Stress = negative environmental impact