14 - Psychological Disorders Flashcards
Psychopathology
- the scientific study of mental disorders
- sickness or disorder of the mind
- psychological disorder
- reflects dysfunction of the body, particularly of the brain
- environment and biology interact to produce psychological disorders
Etiology
- factors that contribute to the development of a disorder
- how psychologists understand disorders
society
What are the 4 considerations of abnormal behaviour?
(4)
- do they act in a way that deviates from cultural norms?
- is their behaviour maladaptive? does it interfere with a person’s ability to respond appropriately in some situations?
- is their behaviour self-destructive, does it cause them distress, or threaten others?
- does the behaviour cause discomfort and concern to others? (impairing social relationships)
What are the main purposes of the DSM-5?
- description of disorders based on similarity of symptoms
- provide a shared language and classification
- allow care providers to bill health insurance companies (many times they need a DSM diagnosis first)
What are some problems with the DSM-5?
- categorical approach = someone either has a psychological disorder or they don’t (doesn’t take different levels of severity into account)
dimensional approach
- considers psychological disorders on a continuum
- people vary in degree
- a spectrum
- domains of functioning instead of observable symptoms (ex. cognitive systems, social processes, arousal and regulatory systems, etc.)
Research Domain Criteria (RDoC)
- a method that defines basic domains of functioning (such as attention, social communication, anxiety) and considers them across multiple levels of analysis, from genes to brain systems to behaviour
- guide research rather than classify disorders for treatment
Comorbidity
- people don’t often fit neatly into a category
- psychological disorders commonly overlap (ex. persisitent depressive disorder usually has a strong overlab with substance abuse and vice versa)
- which do you treat?
Assessment
What is the primary goal?
- in psychology, examination of a person’s cognitive, behavioural, or emotional functioning to diagnose possible psychological disorders
- make a diagnosis so that appropriate treatment can be provided
Evidence-based assessment
- assessment based on research into evaluation of psychopathology, selection of tests, and neuropsychological methods
Diathesis-stress model
- a way of thinking about the interaction between environment and person in the onset of psychopathology
- diagnostic model proposing that a disorder may develop when an underlying vulnerability is coupled with a precipitating event
- diathesis: underlying vulnerability
Family systems model
- a diagnostic model that considers problems within an individual as indicating problems within the family
Sociocultural model
- a diagnostic model that views psychopathology as the result of the interaction between individuals and their cultures
- ex. (dramatic) one person has schizophrenia the other is a quaker
Cognitive-behavioural approach
- a diagnostic model that views psychopathology as the result of learned, maladaptive thoughts and beliefs
- many types of abnormal behaviour are learned
2 major types of psychopathology
Internalizing disorders
- characterized by negative emotions
- divided into broad categories that reflect emotions of distress and fear
- more common in women
2 major types of psychopathology
Externalizing disorders
- characterized by impulsive behaviour
- more common in men
Anxiety disorders
- psychological disorders characterized by excessive fear and anxiety in the absence of true danger
- continually arousing the autonomic nervous system
- involve fear or nervousness that is excessive, irrational, and maladaptive
- part of fight or flight response
Generalized anxiety disorder (GAD)
- state of constant anxiety not associated with any specific object or event
- ex. Reginald is feeling very worried and has been for months, but he can’t figure out why. It seems like he’s anxious about everything
Social anxiety disorder
- fear of being negatively evaluated by others
- the more social fears someone has, the more likely they are to develop other disorders (ex. substance abuse, depression, etc.)
- comorbid with many other things
Agoraphobia
- intense fear of having a panic attack in public
- try to avoid certain situations
- fear they won’t have a way to get out/escape
- causes panic attacks
Panic disorder
- sudden attacks of overwhelming terror
Phobia
- fear of a specific object or situation
Panic attacks (3 reactions)
- emotional reaction: intense fear, apprehension, and terror
- physical reaction: racing heart, trembling, dizziness
- cognitive reaction: think they’re having a heart attack, going crazy, losing control
What are some factors that the behavioural manifestations of anxiety disorders share?
- biased thinking - anxious individuals tend to perceive neutral situations as threatening and they focus on that
- learning - developing fears from observing others that have those fears
- biological basis
Q: How does the cause of anxiety differ in specific phobias and in GAD?
- specific phobias have a specific object or event that causes fear
- GAD is worry with no specific threat
What is a common feature of all depressive disorders?
- presence of sad, empty, or irritable mood
- bodily symptoms
- cognitive problems that interfere with everyday life
Major depressive disorder
critera of diagnosis
- a disorder characterized by severe negative moods or lack of interest in normally pleasurable activities
- to be diagnosed they have to experience a major depressive episode for at least two weeks along with other symptoms (appetite, sleep, etc.)
Persistent depressive disorder
- a form of depression that is not severe enough to be diagnosed as major depressive disorder but lasts longer (can last 2-20 years)
Aaron Beck
Cognitive Triad
causes of depression
- people suffering from depression perceive themselves, situaions, and the future negatively
- they influence one another and contribute to the disorder
Learned helplessness
- a cognitive model of depression in which people feel unable to control events in their lives
Manic episodes
- last at least one week
- abnormally and persistently elevated mood
- increased activity
- diminished need for sleep
- grandiose ideas
- racing thoughts
- extreme distractibility
- often lead to excessive involvement in activities that make someone happy but may not be positive in the long run (behaviour they may regret later)
- may have severe thought disturbances and hallucinations
Bipolar 1 disorder
- more manic episodes than depression
- frequent depressive episodes as well (but they wouldnt be severe enough for the DSM5)
- manic episodes cause significant impairment in daily living and may result in hospitalization
- doesn’t require a major depressive episode for diagnosis