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Random Terms Worth Knowing
JHSPH09
98
Other
Graduate
12/19/2009

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Term
What is drug abuse?
Definition
Abuse – use of substance in a manner, amount, or situation such that the drug use causes problems (physical, social, legal, occupational, psychological, etc.) or greatly increase the chances of problems occurring.
Term
What is drug dependence?
Definition
Dependence – state in which the individual uses the drug so frequently and consistently that it appears difficult for the person to get along without using the drug. When you show withdrawal, it implies physiological dependence.
Term
What is binge drinking?
Definition
Binge – pattern of drinking alcohol that brings blood alcohol concentration (BAC) to 0.08 gm% or above. For the typical adult, this pattern = 4 or more drinks (female) or 5 or more drinks (male) in about 2 hours. [The National Advisory Council on Alcohol Abuse and Alcoholism]
Term
What is drug reinforcement?
Definition
Reinforcement – everything else being equal, everytime you take the drug you slightly increase the probability that you will take it again.
Term
What is effectiveness? What is efficacy? What is the difference?
Definition
Effectiveness = A measure of the extent to which a specific intervention, procedure, regimen does what it is intended to do for a specified population.
Efficacy = The extent to which a specific intervention... provides beneficial results under ideal conditions. Usually based on randomized control trials.
Term
What are four types of sampling?
Definition
1) Simple Random Sampling
2) Stratified Random Sampling
3) Systematic Sampling
4) Cluster Sampling
Term
What is simple random sampling?
Definition
Simple Random Sampling: The probability that any individual element is chosen is the ratio of the sample size to the size of the population: n divided by N.
Term
What is stratified random sampling?
Definition
Stratified Random Sampling: The sampling frame is divided into different strata, and simple random samples are drawn within each stratum. This approach ensures adequate representation
Term
What is systematic sampling?
Definition
Systematic Sampling: Sample members are drawn at fixed intervals.
Term
What is cluster sampling?
Definition
Cluster Sampling: A cluster is a listing element that may contain more than one elementary unit. Examples of clusters of individuals include hospitals, classrooms, and households.
Term
What is selection bias?
Definition
Selection Bias: Occurs if enrollment of exposed and non-exposed individuals is influenced by the disease status. Considerable attention has been given to sources of selection bias in case-control group should be representative of the population at risk.
Term
What is information bias?
Definition
Information Bias: Refers to the invalid estimates of the relationship between exposure and disease outcomes resulting from information obtained on study subjects.
Term
What is confounding bias?
Definition
Confounding Bias: Occurs when the study samples in the comparison groups are imbalanced with respect to other characteristics that are independent determinants of the disease under study.
Term
What is a proband?
Definition
Probands: Any member of a family who causes the family to be ascertained
Term
What is a family history study? What is a family study? What is the difference?
Definition
Family History: The collection of diagnostic data using informants.



Family Study: The collection of diagnostic data by direct interviews.
Term
What is recall bias?
Definition
Recall Bias: The error in measurement due to inaccuracies in the respondent’s memory of events.
Term
What scale did the ECA use? What scale did the NCS use? What were the consequences of these differences?
Definition
ECA - DIS
NCS - CIDI
NCS much higher prevalence rates
Term
What scale did the US-UK project use?
Definition
The Present State Exam - developed by Wing
Term
What are the three clusters of personality disorders?
Definition

Cluster A - Paranoid/Schizoid/Schhizotypal

 

Cluster B - Antisocial/Borderline/Histrionic/Narcissistic

 

Cluster C - Avoidant/Dependent/OC

Term
What disorders are associated with each cluster of personality disorders?
Definition
Cluster A - schizophrenia
Cluster B - other PD, substance use
Cluster C - anxiety
Term
Name the three types of frontal-subcortical dysfunction?
Definition
Dorsolateral prefrontal circuit (known as dysexecutive type), we see impairments in executive functioning, including a diminished judgment, planning, insight, temporal organization, motor programming deficits



Orbitofrontal circuit (disinhibited type) – stimulus-driven behavior, diminished social insight, distractibility, emotional lability



Anterior cingulate circuit (apathetic type) – diminished spontaneity, diminished verbal output, diminished motor behavior, increased response latency.
Term
Describe the differences between acute and chronic injury to brain function
Definition
Acute injury: flight or flight, repair, increase glucocorticoids, anti-inflammatory, formation of emotional memories

Chronic injury: decrease glucocorticoids, hippocampal damage, brain shrinkage, but changes are reversible
Term
What is the difference between negative and positive reinforcement when it comes to drug dependency?
Definition
Negative reinforcement (Skinner): you have such bad withdrawal symptoms, but when you take the drug, withdrawal symptoms go away immediately. This strengthens the drug dependent behavior even more.



Positive reinforcement – you have to increase the amount of drug than what you have previously used to get just has high as before. (e.g. animal pressing the lever for the catheter to inject drug more and more)
Term
What are four types of assessment to understand brain function?
Definition
1) Psychometric Tests
2) Structured Interview
3) Clinic Observation
4) Neuroimaging
Term
What are the big five cognitive domains?
Definition
1) Memory
2) Executive Function
3) Visuospatial Ability
4) Attention
5) Language
Term
What are the three steps in memory formation?
Definition
1) Encoding
2) Storage
3) Retrieval (as Reconstruction)
Term
What are four types of memories?
Definition
1) Episodic
2) Semantic
3) Procedural
4) Implicit
Term
What are 7 indicators of brain health?
Definition
1. Weight
2. Cortical Thickness
3. Dendritic branching
4. Synapses per Neuron
5. Neurogenesis
6. Protein Synthesis
7. Performance
Term
What are six functions of EF?
Definition
1. Planning
2. Judgment
3. Goal-directed Behavior
4. Delaying gratification
5. Motivation
6. Initiative
Term
Name three types of brain injury?
Definition
1) Concussion
2) Epidural hematoma
3) Subdural hematoma
Term
What are the three lineages of comprehension?
Definition
I. Observational/typological lineage
(formulating diagnoses based on clinical presentations)

II. Bioinvestigative/experimental lineage (Medical Researchers)

III. Epidemiologic/statistical lineage
(Population based studies)
Term
What are the four epochs in American Psychiatry?
Definition
1) State Hospital Psychiatry (1890-1910) (Classify)
2) Meyer Epoch (1910-1940) (Observe to Assess)
3) Psychoanalytic Epoch (1940-1970) (Interact to Guide)
4) Empirical Psychiatry Epoch (1970-current day) (Identify to Count)
Term
What are the three stages in diagnosis?
Definition
1) Observation
2) Interpretation
3) Clinical Judgment
Term
What are the four steps in case taking?
Definition
1) Taking a history
2) Mental Status Examination
3) Diagnostic Formulation
4) Treatment Plan
Term
What two approaches are made for diagnosis and scales used for them?
Definition
1) Bottom-up Approach (Present State Exam, SCAN)
2) Top-down Approach (DIS, SADS, SCID)
Term
What are three types of interviews? And what are differences between them?
Definition
1. Structured – Fixed format of script, but some paraphrasing/revisiting

2. Scheduled – No deviation in wording or order of questions

3. Semi-structured – Mandatory script that leads for free scripting
Term
What are problematic dispositions (using the dimension perspective)?
Definition
1) Suboptimal Cognitive Capacity
2) Temperament
3) Maturity
Term
Course of illness questions should focus on what subtopics?
Definition
1) Onset
2) Recurrence
3) Remission
Term
HPA Axis breakdown
Definition
Hypothalamus --> releasing factor --> Anterior pituitary --> ACTH into blood --> Adrenal cortex activated --> releases cortisol
Term

What is the role of the Hippocampus?

 

Name important study in London

Definition

Memory - don't forget it shrinks with stress, and grows with experience

 

(Maquire, 2000 - taxis)

Term

What is the role of the amygdala?

Big researcher involved?

Definition

Emotion regulation -

(Le Doux, fear conditioning doesn't work with lesioned amygdala)

Term
What function does the Basal ganglia have?
Definition
Cognition and motor integration
Term
Give a test for the memory domain - episodic?
Definition
passage recall
Term
Give a test for the memory domain - procedural?
Definition
mirror tracing
Term
Give a test for the memory domain - implicit?
Definition
Gollumb incomplete figures
Term
Give a test for the memory domain - semantic?
Definition
word knowledge
Term
Give a test for the language domain?
Definition
Boston naming list
Term
Give a test for the visuospatial domain?
Definition
Clock drawing
Term
Give a test for the attention domain?
Definition
Stroop
Term
Give a test for the EF domain?
Definition
Wisconsin card sort test
Term
What is apraxia?
Definition
a neurological disorder characterized by loss of the ability to execute or carry out learned purposeful movements, despite having the desire and the physical ability to perform the movements --- a disorder of motor planning
Term
What is agnosia?
Definition
Is a loss of ability to recognize objects, persons, sounds, shapes, or smells
Term
What is aphasia?
Definition
A difficulty in producing or comprehending spoken or written language.
Term
What are five criteria for endophenotypes?
Definition
1) It is associated with illness in the population.
2) It is heritable.
3) It is state-independent (manifests in an individual whether or not illness is active).
4) It is transmitted with the disease
5) Is present in non-affected and affected families, but higher amounts in affected families
Term
What are three life phases according to the life course perspective?
Definition
1) normative age-graded
2) normative history-graded
3) non-normative life events
Term
Who proposed the three phases of interventions?
Definition
Mrazek and Haggerty (1994)
Term
What is the etic approach?
Definition
Universal perspective of measuring and analyzing certain conditions based upon meaningful categories across different cultures.
Term
What is the emic approach?
Definition
Particular views & behavioral patterns that could be agreed upon the 'insiders' of the culture
Term
What are the strengths and weaknesses of the etic approach?
Definition
Strength = ability to map out similarities/differences across culture; can use parsimonious model.

Weaknesses = assumptions often formed by American/European standards that non-western variations may be seen as measurement error.
Term
What are the strengths and weaknesses of the emic approach?
Definition
Strength = appreciation of cultural uniqueness & cultural relativism; openness to build culturally relevant theory that may build foundation for future scientific studies, prevention, intervention

Weakness = lack of immediate scientific usefulness - does not provide immediate, practical guideline to inform western trained clinical workers to take an action based on emic descriptions.
Term
What is the difference between crystallized and fluid intelligence in terms of retention over time? Who coined these terms?
Definition
Fluid starts decreasing around age 30, Cattell
Term
What is social causation?
Definition
Being in a particular group causes changes in a given trait of interest - that is the social group causes people to be different
Term
What is social selection?
Definition
Being high on a trait of interest, may make you be more likely to join a group - that is having a trait makes you different
Term
What is the prevalence of Parkinson's Disease?
Definition
- 1% of US population over the age of 55
- 3% of US population over the age of 70
Term
What is Parkinson's Disease?
Definition
A progressive neurodegenerative disease
involving basal ganglia & putamen, in particular, and thereby causes motor, cognitive, and psychiatric deficits
Term
What happens within the basal ganglia with Parkinson's Disease?
Definition
Loss of pigmented dopamine-secreting (dopaminergic) cells
in the substantia nigra (SN) ("black substance").
Term
What physical brain presentation is seen in Parkinson's Disease?
Definition
Lewy Bodies
Term
Atrophy occurs in what two brain regions in AD?
Definition
Parietal lobe, hippocampus
Term
What physical brain presentation is seen in Alzheimer's Disease?
Definition
Amyloid plaques
Term
How is Huntington's Disease transmitted?
Definition
Autosomal dominant
Term
What type of dementia does HD cause?
Definition
Subcortical
Term
What is the protein problem in HD?
Definition
A trinucleotide repeat for glutamine, called huntingtin
Term
Three possible relationships found in a study?
Definition
1) Artifactual
2) Noncausal
3) Causal
Term
Benefits of case-control studies?
Definition
1) Cheap
2) Efficient for rare disorders
Term
Benefits of prospective cohort studies?
Definition
1) Accurate measurement of exposure
2) Can assess temporality
3) Prevalence can be measured
Term
Weaknesses of case-control studies?
Definition
1) Relies on recall (recall bias)
2) Can't estimate prevalence
3) No temporality established
4) Low quality of data
Term
Weaknesses of prospective cohort studies?
Definition
1) Expensive
2) Impractical for rare disorders
3) Long time period, lost to f/u problems
Term
What are the three populations of interest in an epi study?
Definition
Target
Source
Sample
Term
What is the target population?
Definition
The group to which results are to be generalized
Term
What are two major types of epi study designs?
Definition
1) Experimental
2) Observational
Term
Examples of experimental epi designs?
Definition
Clinical trials, randomized controlled studies
Term
Examples of observational epi designs?
Definition
1) Retrospective cohort design
2) Prospective cohort design
3) Case-control study
Term
Who is being compared in a cohort study?
Definition
The exposed vs. the unexposed
Term
Who is being compared in a case-control study?
Definition
Diseased (cases) vs. Non-diseased (non-cases)
Term
Selection of control differences between nested case-control and case cohort
Definition
Case may serve as previous control in NCC, but only if in the subcohort for the CC.
Term
Outcome measures comparing nested case-control and case cohort?
Definition
NCC = Only one outcome
CC = Multiple outcomes are available
Term
Prevalence estimates available in nested case-control vs. case cohort
Definition
Only in case cohort!
Term
What are some major obstacles in a genetic family study?
Definition
1) Ascertainment
2) Lack of independence among family members
3) Variable age of onset
Term
What is pairwise concordance?
Definition
The # of concordants/ total # of pairs
Term
What is concordance?
Definition
The % agreement in trait values among pairs of relatives
Term
What are violations to the Hardy-Weinberg law?
Definition
1. Non random mating
2. Mutation
3. Selection
4. Migration
5. Genetic drift
Term
What is probandwise concordance?
Definition
# probands in concordant pairs/#probands in concordant pairs + probands in discordant pairs
Term
What are limitations to twin studies?
Definition
1. Placentation
2. Diff. parental treatment
3. Diff. environmental exposures
Term
Who developed an IQ scale?
Definition
Wechsler, WAIS and WISC
Term
What study showed a difference between memory formation in PD and AD? What did it show?
Definition
Sergio and colleagues (2005) - AD had a problem with memory retrieval, while PD had a problem with memory encoding
Term
What type of dementia is the most common?
Definition
Alzheimer's
Term
What disorder has the strongest genetic link?
Definition
Autism
Term
What is delirium?
Definition
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