Paradigms in Psychopathology (Ref: mochi_venti) Flashcards
(62 cards)
What is the key difference between one-dimensional and multi-dimensional models?
One-dimensional traces behavior to a single cause (e.g., chemical imbalance); multi-dimensional involves multiple influences (biological, social, etc.) interacting in a feedback loop
Why is context critical in the multi-dimensional model?
Components affect each other non-independently, forming a complex network.
The __________ model explains Judy’s blood-injection-injury phobia as a result of emotional, cognitive, social, biological, and behavioral interactions.
multi-dimensional
How do genes influence psychopathology?
They set developmental boundaries but rarely determine outcomes absolutely (except in rare disorders like Huntington’s).
What is polygenic inheritance?
Traits/behaviors influenced by many genes, each with tiny effects, often interacting with the environment.
Define “diathesis.”
A genetic vulnerability activated by environmental stress to produce a disorder
The __________ model explains disorders via gene-environment interactions (e.g., stress “turning on” genetic vulnerabilities).
diathesis-stress
How do extremely low levels of serotonin and low levels of serotonin manifest?
Low levels = aggression, suicide, impulsive overreacting, excessive sexual behavior; extremely low levels = less inhibition, instability, impulsivity, tendency to overreact.
What is dopamine’s role in schizophrenia?
Overactive dopamine circuits may contribute to symptoms.
__________ is an inhibitory neurotransmitter that reduces anxiety (e.g., targeted by benzodiazepines).
GABA
What does the limbic system regulate?
Emotions, learning, impulses, and basic drives (hunger, aggression)
The __________ cortex synthesizes information from other brain regions to decide responses.
frontal
What is learned helplessness?
Depression-like state when individuals perceive no control over stressors (Seligman & Maier).
__________ learning involves observing others’ experiences to judge personal outcomes (Bandura).
Social
How does epigenetics differ from genetic mutation?
Epigenetics alters gene expression (on/off states) via environmental factors (stress, diet) without changing DNA sequence.
Why might two identical twins not both develop schizophrenia despite shared genes?
Environmental triggers (e.g., trauma, infections) may activate genetic vulnerabilities in only one twin.
The __________ gene-environment model suggests genes may predispose individuals to seek out risk-triggering environments (e.g., impulsivity leading to high-risk behaviors).
correlation
How does PKU illustrate gene-environment interaction?
Mental retardation occurs only if phenylalanine (environmental factor) is ingested due to an inherited metabolic defec
Contrast the roles of the sympathetic vs. parasympathetic nervous systems.
Sympathetic = fight-or-flight (↑ heart rate); parasympathetic = rest-and-digest (↓ arousal).
The __________ (brain region) regulates primal drives like hunger and aggression, while the __________ integrates sensory input for decision-making.
limbic system; prefrontal cortex
Why might beta-blockers help anxiety?
They antagonize norepinephrine’s effects on beta-receptors, reducing physical symptoms (e.g., racing heart)
How do SSRIs mechanistically treat depression?
They block serotonin reuptake → ↑ synaptic serotonin → improved mood regulation.
How might learned optimism protect against stress?
Positive attributions buffer against perceived helplessness, reducing depression risk.
What’s the role of cortisol in the HPA axis?
Stress hormone released by adrenal cortex it mobilizes energy but harms health if chronically elevated.