Chapter 3 - Causal Factors and Viewpoints Flashcards
Necessary cause
If Disorder Y occurs, then Cause X must have preceded it
Sufficient cause
If Cause X occurs, then Disorder Y will also occur
Contributory cause
If X occurs, then the probability of Disorder Y increases
proximal cause
causal factor that operates shortly before symptoms of a disorder are shown. May trigger onset of disorder.
distal cause
Causal factor occurring early in life that may not show effects for several years. May contribute to a predisposition to develop a disorder.
reinforcing contributory cause
A condition that tends to maintain maladaptive behavior that is already occurring
Causal pattern
when more than one causal factor is involved; conditions A, B, C lead to condition Y
diathesis
a predisposition toward developing a disorder; may derive from biological, psychological, and/or sociocultural causal factors
stress
the response or experience of an individual to demands that she perceives as taxing or exceeding her personal resources
diathesis-stress model
states that disorders develop when a stressor operates on a person who has a vulnerability for that disorder
additive model
diathesis-stress model in which individuals with a high level of diathesis need only a small amount of stress to develop a disorder and vice versa
interactive model
diathesis-stress model in which some amount of diathesis must be present before stress will have any effect
protective factors
influences that modify a person’s response to stressors, making it less likely that the person will experience adverse consequences of stressors. Usually operate only to help resist against effects of risk factors rather than providing benefit to those w/o risk factors.
resilience
the ability to adapt successfully to even very difficult circumstances “overcoming the odds”
developmental psychopathology
field that focuses on determining what is abnormal at any point in development by comparing/contrasting it with normal and expected changes
categories of biological factors relevant to development of maladaptive behavior
- neurotransmitter and hormonal abnormalities in neurotransmitter systems (brain and CNS) - genetic vulnerabilities - temperament - brain dysfunction and neural plasticity
abnormalities in neurotransmitter functioning
- excessive production and release into synapse - dysfunction in deactivation of neurotransmitter (reuptake and degradation) - abnormally sensitive/insensitive receptors in postsynaptic neuron
5 primary neurotransmitters (as related to psychology)
- norephinephrine - dopamine - serotonin - glutamate - GABA (gamma aminobutyric acid)
norephinephrine
plays a role in reactions to stressful/dangerous situations, attention, orienting, and basic motives
dopamine
deals with pleasure and cognitive processing. implicated in schizophrenia and addictive disorders
serotonin
effects the way we think and process information from our environments, behaviors, and moods. plays role in emotional disorders (anxiety, depression) and suicide
glutamate
excitatory neurotransmitter, implicated in schizophrenia
GABA
reduces anxiety and other emotional states characterized by high levels of arousal
HPA axis
hypothalamic-pituitary-adrenal-cortical axis
activation of HPA axis
- messages in the form of CRH travel from hypothalamus to pituitary - in response to CRH, pituitary releases ACTH - ACTH stimulates cortical part of adrenal gland to produce adrenaline and cortisol, which are released to general circulation - cortisol tells hypothalamus and pituitary to decrease release of CRH and ACTH, decreases adrenaline and cortisol