Abnormal Psychology | Unit 1 Study Guide

Big Idea Questions

Answers/details

Ch. 1: Intro and Historical Overview

What are the characteristics of stigma?

Distinguishing label is applied

Label refers to undesirable attributes

People with the label are seen as different

People with the label are discriminated against

How does the DSM-5 define a mental disorder?

It occurs within the individual

It involves clinically significant difficulties in thinking, feeling, or behaving

It usually involves personal distress

It involves dysfunction in psychological, development, and or neurobiological processes that support mental functioning

It is not a culturally specific reaction to an event

Primarily not a result of social deviance

In the “early days,” what were some causes of psychopathology believed to be?

displeased gods or demonic possession

What was an asylum, and why were they less than ideal?

 

Asylum = a refuge for the housing and care of people with psychological disorders

Viewing the patients was an attraction for the wealthy

Treatments were crude and painful

 

What was moral treatment? Where do we see parts of moral treatment today?

-       Small privately funded hospitals focused on humane treatment

-       Talking and reading with attendants

-       Purposeful activities as close to regular life as possible

How was the first link between psychology and biology found?

-       1905 the biological cause of syphilis is discovered linking psychology and biology

What are some early biological treatments?

-       Insulin coma therapy

-       Electroconvulsive therapy

-       lobotomy

What were some early psychological treatments?

-       Hypnosis

-       Magnetic fields

-       Cathartic method

What are Freud’s contributions to psychopathology?

-       Psychopathy results from unconscious conflicts in the individual

-       Id, ego, superego

What is the difference between classical and operant conditioning?

Classical = involuntary behavior + stimulus

Operant = voluntary + punishment

Ch. 2: Current Paradigms in Psychopathology

What are the main components of the genetic paradigm?

  • Almost all behavior is heritable to some degree

  • Genes do not operate in isolation from the environment

  • Genes

    • Carriers of genetic information

  • Gene Expression

    • Proteins influence whether the action of a gene will occur

  • Polygenic

    • Multiple genes are interacting with the environment

  • Heritability

    • The extent to which variability in behavior is due to genetic factors

    • (population level, not individual level)

 

What is the difference between a genotype and a phenotype?

  • Genotype

    • Total genetic makeup of an individual

    • The physical sequence of DNA

  • Phenotype

    • Total observable behavioral characteristics

 

What is a SNP? What is a CNV?

  • Single nucleotide polymorphisms (SNPs)

    • Difference between people in a single nucleotide in the DNA of a particular gene

  • Copy Number Variations (CNVs)

    • An abnormal copy of one or more sections of DNA within the gene

 

What are the main components of the neuroscience paradigm?

  • Psychological disorders are linked to aberrant processes in the brain

  • Three major components

    • Neurons and neurotransmitters

    • Brain structure and function

    • Neuroendocrine system

 

What are the parts of a neuron, and what do they do?

  • Neuron

    • A nervous system cell compromised of the cell body, dendrites, one or more axons, and terminal buttons

  • Synapse

    • A small gap between the terminal button of the sending neuron and the cell membrane of the receiving neuron 

  • Neurotransmitters

    • Chemical that allows neurons to send a signal across the synapse to another neuron

  • Receptors on the post synaptic cell can be either excitatory or inhibitory

    • Excitatory = neuron will fire

    • Inhibitory = wont fire

  • Reuptake

    • Neurotransmitter being take back into the presynaptic cell from the synapse

 

What are the functions of the: hippocampus, hypothalamus, amygdala?

  • Hippocampus (memory)

  • Hypothalamus (the four f's: fighting, fleeing, feeding, fornication)

  • Amygdala (emotion, attention)

 

How does the HPA axis work?

  • Hypothalamic-pituitary-adrenal (HPA) axis

    • Hypothalamus release CRF

    • CRF travels to pituitary gland and stimulates release of ACTH

    • ACTH prompts adrenal cortex to release cortisol

 

What are the main components of the cognitive behavioral paradigm?

The Cognitive Behavioral Paradigm

  • Roots in learning principles and cognitive science

  • Problem behavior continues if it is reinforced

  • To alter behavior, modify consequences

    • Time out

    • Behavioral activation

    • Exposure

 

What is CBT, and what is the goal of CBT?

Cognitive behavioral therapy

  • A type of therapy in which negative patterns of thought are challenged to alter unwanted patterns to treat mood disorders

  • Constructive restructuring

    • Changing a pattern of thought

  • Goal

    • To change feelings, behaviors, and symptoms of changing cognition

 

Ch. 3: Diagnosis

What is reliability (and the different types)?

Reliability

  • Consistency of Measurement

    • Interrater Reliability

      • The degree to which 2 separate observers agree on what they have observed

    • Test-retest reliability

      • The degree to which people being tested twice receive similar scores

    • Alternate form reliability

      • The extent to which scores on 2 different forms of the test are measured

    • Internal Consistency

      • The extent to which the items on a test are related to one another

 

What is validity (and the different types)?

  • The measure measures what it is supposed to measure

    • Content Validity

      • Wether a measure adequately samples/covers the domain of interest

    • Construct Validity

      • How well a test measures the concept it was meant to evaluate

 

What are some criticisms of the DSM-5?

  • DSM-5 contains 347 different diagnoses

  • Comorbidity

    • The presence of a second diagnosis

  • Categorical vs. dimensional classification

    • Categorical: Present or absent

    • Dimensional: Where it falls on the continuum

  • Reliability in everyday practice

    • Interrater reliability should be high

    • Clinicians may have different definitions for symptoms

 

What is a structured interview?         

  • Structured interviews

    • Questions are set in a prescribed fashion for the interviewer

    • Goal: collect standardized information for making diagnostic judgements

    • Structural clinical interview for DSM

 

What are some examples of personality tests? What do they measure?

  • Minnesota Multiphase Personality Inventory -2 (2009)

  • The BIG FIVE

  • Intelligence (IQ) Test

    • A way of assessing a person's current cognitive ability

 

What are the different types of imaging techniques, and what do they measure?

  • CT/CAT Scan: Computerized Axial Tomography

    • Brain Stricture

    • Detects differences in tissue density, structural abnormalities

      • Enlarged ventricles, tumors, blood clots

  • MRI: Magnetic Resonance Imaging

    • Brain structure, better than CT

    • Measures electromagnetic signal

  • fMRI: functional MRI

    • Brain Structure and function

    • Measures blood flow as a proxy for neural activity

      • BOLD signal = blood oxygenation level dependent

  • PET Scan: Positron emission tomography

    • Brain structure and function

    • More invasive than fMRI; involves a radioactive isotope

 

What is the function of a neuropsychological assessment?

  • Based o the idea that different psychological functions rely on different areas of the brain

    • Can be used to determine if/where there is brain damage before doing expensive imaging

    • Halstead-Reitan test battery

      • Tactile performance test - time

      • Tactile performance test - memory

      • Speech sounds perceptions test

 

How do we use psychophysiological assessments?

  •  

    • The field concerned with bodily changes associated with psychological events

 

Ch. 4: Research Methods in Psychopathology

What is the difference between a theory and a hypothesis?

  • Theory

    • Set of propositions mean to explain a class of observations

    • Goal: understand cause-effect relationships

  • Hypotheses

    • An expectation about what should occur if a theory is true

    • Must be falsifiable

 

What is a case study and when is it used?

  • Case study

    • Recording detailed information about one person at a time

    • Covers development, family history, medical history, etc.

 

What does it mean when two variables are correlated?

  • Correlation Coefficient (r)

    • -1.0 to 1.0

    • 0.0 indicates no relationship

 

What are the basic features of an experiment?

  • Investigator manipulates a variable

  • Participants are randomly assigned to conditions

  • Research measures a DV that is expected to vary within conditions of the IV

  • Experimental effect:

    • Differences between conditions on the DV

 

Why would you use a control group?

  • Comparison group

    • Provides evidence that changes during treatment were due to the treatment

 

What is p-hacking?

  • Tweaking data until a significant finding is identified