WEEK 5 Flashcards
MOOD DISORDERS
- Mood is a pervasive and sustained emotional state→ ‘colours’ one’s view of the world, and affects behaviour and cognition
- A group of disorders in which pathological mood- a sustained and pervasive emotional state, affecting psychosocial, physical and occupational functioning- is experienced
- The disordered mood is distinct from that which is usually experienced and there is a sense of loss of control over the mood
- The primary mood disorders are → Major depressive disorder and Bipolar disorder
MAJOR DEPRESSIVE EPISODE- COMMON FEATURES OF DEPRESSION
- Depressed mood
- Loss of interest/pleasure in all or almost all activities
- Significant weight loss or gain
- Insomnia or hypersomnia
- Psychomotor agitation or retardation
- Fatigue or loss of energy
- Feelings of worthlessness or excessive guilt
- Diminished ability to think or concentrate: indecisiveness
- Recurrent thoughts of death, recurrent suicidal ideation, or suicide attempt
CLINICAL FEATURES/ SYMPTOMS ASSOCIATED WITH DEPRESSION: Appearance and Behaviour
- Decreased interest in grooming and cleanliness
- Psychomotor retardation or agitation
- Sleep disturbance
CLINICAL FEATURES/ SYMPTOMS ASSOCIATED WITH DEPRESSION: MOOD AND AFFECT
Anger, Anxiety, Apathy, Bitterness, Dejection, Denial of feelings, Despondency, Flat, Guilt, Helplessness, Hopelessness, Loneliness, Low self-esteem, Restricted, Sadness, Sense of personal worthlessness,
CLINICAL FEATURES/ SYMPTOMS ASSOCIATED WITH DEPRESSION: THINKING AND SPEECH
- Egocentric, ambivalence, confusion, poor concentration, delusions or hallucinations, indecisiveness, loss of interest or motivation, pessimism, self-blame, guilt, self-deprecation, self-destructive thoughts, uncertainty
- Spectrum of thinking narrows- focus on negative thoughts and ideas
CLINICAL FEATURES/ SYMPTOMS ASSOCIATED WITH DEPRESSION: PERCEPTION
- Major depression may also be accompanied by delusions and hallucinations (delusions of guilt, worthlessness, failure, hallucinations- negative voices reaffirming the nihilistic themes)
CLINICAL FEATURES/ SYMPTOMS ASSOCIATED WITH DEPRESSION: OTHER FEATURES
- Sleep disturbance, fatigue, lack of appetite, decreased sexual interest, significant weight loss
- Somatisation - people may describe pain conditions or other physical symptoms rather than a depressed mood (e.g. backache, chest pain, constipation, dizziness, headaches)
BIPOLAR
- Bipolar I disorder- One or more manic episode, or mixed episodes and may be accompanied by major depressive episodes (not necessary for diagnosis)
- Bipolar II disorder- recurring mood episodes consisting of 1 or more major depressive episode and at least one hypomanic episode
MANIA
- Mood state characterised by abnormally and persistently elevated, expansive mood, increased activity and poor judgement
- Hypomanic: Milder symptoms of mania, shorter time period
- Mania (without psychotic symptoms) more severe symptoms; impairment in functioning
- Mania (with psychotic symptoms) usually requires hospitalisation, delusions and or hallucinations, usually mood congruent
COMMON FEATURES OF A MANIC EPISODE
- Distinct period of abnormally and persistently elevated, expansive or irritable mood and abnormally and persistently increased goal directed activity or energy, lasting 1 week.
- Inflated self esteem or grandiosity
- Decreased need for sleep
- More talkative than usual
- Flight of ideas or racing thoughts
- Distractibility
- Increase in goal directed activity or psychomotor agitation
- Excessive involvement in activities with high potential for painful consequences
OTHER MOOD DISORDERS
- Persistent depressive disorder (dysthymia) → Chronic mild depression (requires 2 years of symptoms for a diagnosis)
- Cyclothymia→ Chronic bipolar disorder- with milder depressive and mildly elevated symptoms (requires 2 years of symptoms for a diagnosis)
- Postpartum ‘blues’ → Transient disturbances in mood, characterised by lability, sadness, dysphoria, subjective confusion
- Perinatal depression → Characterised by depressed mood, excessive anxiety, insomnia and change in weigh
AETIOLOGY OF MOOD DISORDERS: Genetic Factors
- Play a role in a person’s predisposition towards developing depression and bipolar disorder
- Neurochemical factors, hormonal systems, circadian rhythms and the immune system
AETIOLOGY OF MOOD DISORDERS: Sex Differences
- Women more than twice as likely to develop depression as men
- Theories proposed range from biological, social, psychological and male and female differences in immune system responses to stress
AETIOLOGY OF MOOD DISORDERS: ENVIRONMENTAL/ PSYCHOSOCIAL FACTORS
- Physical illness
- The ageing brain
- Stress and life events- loss often precedes the first episodes of mood disorders
- Personality types
- Drug and alcohol use
ANXIETY
- Common human experience that is a normal emotion felt in varying degrees by everyone.
- Stress, fear and anxiety are normal internal experiences that occur in response to a stressor (internal or external stimulus)
- Evolutionary, inbuilt survival trait → allows for the identification and development of necessary responses to potentially dangerous stimulus
- Fight/flight/freeze response