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psych 333
midterm
99
Physiology
Undergraduate 3
10/09/2011

Additional Physiology Flashcards

 


 

Cards

Term
in the DMS what are the multiaxial diagnosis?
Definition

 

Axis I: Clinical disorders, and conditions that need clinical attention.

 

Axis II: Personality disorders and mental retardation.

 

Axis III: General medical conditions.

 

Axis IV: Psychosocial and environmental problems.

Axis V: Global assessment of functioning scale (0-100).

Term

 

 

 

what does the term Incidence mean?

Definition

 

 

number of new cases in a given time

Term

 

 

prevalence

Definition

 

 

rate of all cases( new and old) in a given time

Term

 

 

lifetime prevalence

Definition

 

 

proportion in a populatino who have ever had a given disorder

Term

 

 

risk factor

Definition

 

 

characteristic that increases the likelihood of a disorder

Term

 

 

definging abnormal behavior: psychological/psychiatric disorders are charaterized by one or more of the following?

Definition

 

 

  • intrapersonal distress (anxiety)
  • fuctional impairment
  • increased risk for adverse outcomes (death, substance dependence)
Term

 

 

 

how do we define impairment?

 

Definition

 

 

  • harmful dysfuction, or inability to perform evolutonarityly selected tasks
  • lack of competence or the ability to perform salient developmetal task
  • harmful to self or others
Term

 

 

establishing clinical (diagnostic) validity in psychiatric research

Definition

 Robins and Guze (1970):

Clinical Description of a cluster of covarying symptoms and etiological precursors.

Laboratory Studies identifying reliable physiological, biological and psychological markers.

Delimitation from other Disorders, or readily definable exclusionary criteria.

Follow-Up Studies outlining a predictable course.

Family Studies identifying increased risk of the same disorder in the relatives of afflicted probands. 

Term

 

 

diagnostic hierarchies

Definition
[image]
Term

 

 

Feighner criteria for schizophrenia

Definition
  • two or more of the following delusions, hellucinations, disorganized speech, , negative symptoms (poverty of speech) diorganized or catotnic  behavior
  • social occupational dysfuction
  • six month of greater duration
  • increased ventricle sizes
  • pet scan show decreased activity
  • genetic loci: strong evidence of susceptibility
Term

 

 

what  is a disease?

Definition

 

a condition of the living animal or plant body orof one of its parts that impairs normal fuctioning and is tyically  manifested by distinguishing signs and symptoms

Term

 

 

disease needs not...

Definition
  • be communicable 
  • spread beyond a single organ or part of the body
  • be heritable 
  • be life-threatening
  • be readily observable 
Term
axis 1
Definition
  • schizophrenia
  • mood disorders
  • anxiety disorder
  • eating disorder
  • disorders first diagnosed
Term
axis 2
Definition

personality disorders and mental retardation

  • antisocial personality 
  • borderline personality 
  • schizoypal personality 
  • any form of mental retardation
Term
axis 3
Definition

general medical  conditions

 

  • infectious diseases (AIDS)
  • diseases of the circulatory system
  • poisoning 
Term
axis 4
Definition

psychosocial and enviromental problems

  • homelessness
  • unemployment
  • recent death of a loved one
Term
structured clinical interviews yeild good....
Definition

reliability for current diagnosis but poor reliability for lifetime prevalence

 

important: high reliability does not ensure validity

Term
checklists and rating scales: beck dression inventory child behavior checklist
Definition

advantages: standarized across clinicians, established reliability and validity, national norms are often available across different age groups for males and females 

 

disavantages: scores are not contextual, results are sometimes interpreted or diagnostic

Term
projective tests
Definition

reputedly assess unconscious processes, most renowned projective test is the Rorschach Inkblot Test

 

so problems with it are almost impossible to standardize state dependent, questionable reliability and validity

can be dangerous when used forensically

Term
behavioral assessment
Definition

sometimes referred to as functional analysis

 

A= antecedent

B=behavior

C=consequence

Term
hypochondriasis
Definition
1- Hs- over concern with bodily symptoms depressive-32
Term
depression
Definition

2-D- depressive symptoms-57

 

Term
hysteria
Definition

3-Hy-emotion dysregulation histrionics-60

 

 describes unmanageable emotional excesses. People who are "hysterical" often lose self-control due to an overwhelming fear that may be caused by multiple events in one's past that involved some sort of severe conflict; the fear can be centered on a body part, or, most commonly, on an imagined problem with that body part. 

Term
psychopathic deviate
Definition
4-pd- psychopathy antisocial tendencies-50
Term
masculinity
Definition
5-MF-sterotypical masuline interest/behaviors rigidty-56
Term
paranoia
Definition
6-pa-level of trust suspiciousness-40
Term
psychasthenia
Definition
7-pt-anxiety, elft doubt-48
Term
schizophrenia
Definition
8- sc- obsessiveness odd thingking asociality-78
Term
hypomania
Definition
9-ma-excitability irritability, unrealistic ambition-46
Term
criterion valid
Definition
like mechanics magazines
Term
face valid
Definition
i see things or animals or people around me that others do not see
Term
millon clinical multiaxial inventory
Definition

shorter than MMPI

used primarily in personality assessment

odd scoring system (base rate scores lie on a scale between 1-115with a median of 60)

Term

methods of knowing:

tenacity-

authority-

a priori-

scientific-

Definition

tenacity- its true because i know it's true

authority-its true because the bible tells me

a priori-its true becuase it stands to reason

scientific- its 'true" if repeated empirical obsercation does not refute it

Term

views of science:

static and dynamic

Definition

static: science is the systematic accumulation of knowledge

 

dynamic: science is the activity of hyppthesis generation and testing

 

Term
function of science: R braithwaite
Definition
science is about gaining an understanding of observable events and prediction futer events
Term
single subject experiments: multi base line reversal
Definition

studies  how one person responds to manipulations of the independent variable, they have high  internal validity.

 

initial time: a, period when treatment was intro:b

reinstatement of conditions of the baseline :a

reintroduction of treatment:b

the reversal type sometimes can not be employed because most treatments aim to produce enduring change so just removing an intervention may not return a perosn to the pretreatment state

problems: changes in fuctinoing cannot attributed to treatment without a reveral, reversal are often unethical

Term
correlational research
Definition
research that assesses the strenght of association between variables ectent to which one variable covaries with another is indexed by the coefficent
Term
measuring the correlation coefficient
Definition
measures both the magnitude and the direction of a relationship. the higher the r the stronger the relastionship. Important: correlation is necessary but not sufficient for inferring causality ie married people are happier than unmarried people
Term
spurious (co)relation
Definition
a situation in which measures of two or more variables are statistically related but are not in fact linked causally usually because the statistical relation is caused by a third varible
Term
experimental research
Definition
tge ibkt research design that allows causal conclusions to be drawn through the following steps:
random assignment and control groups
manipulation o the grouping
control of extraneous variables

the problems: experimental research is impractical and unethical is some cases
Term
behavior genetics
Definition
we attempt to parse variance in behavior into heritable and non heritable(environment) this parsing of variance is accomplished using twin, a family and adoption studies
Term
twin studies
Definition
monozygotic (100 % sharded gentic polymorphisms) dizygotic have 50 % shared gentics,
sibling sibling parids also have 50% shared genetic but share fewer features of the enviroment
we use the ACE model (heritabledoes not equal genetic )
Term
what are the major limitations of the ACE Model?
Definition
does not account for GxE interactions which when unmeasured are subsumed with A resulting in overestimated heritabilty of traits
Term
Some important considerations when thinking about gene-behavior relations:
Definition
Genes do not control behavior directly. They code for protein expression. This occurs via transcription of DNA into mRNA, then translation of amino acids into proteins by tRNA.

Some genetically-derived individual differences in protein expression affect neurobiological processes such as neurotransmission in the brain.

No single gene controls any complex human trait. Behaviors such as impulsivity, intelligence, and depression are affected by many genes. This is called polygenic determinism.

Genes confer biases in behavior, not specific behaviors. For example, genes involved in alcoholism cannot cause alcoholism in the absence of environmental exposure to alcohol.

Popular press accounts of single genes controlling aggression and other complex traits are mischaracterizations:
Term
The Warrior Gene

The truth about MAO-A:
Definition
MAOA degrades monoamine neurotransmitters including dopamine (DA), norepinephrine (NE) and serotonin (5-HT)

These neurotransmitters play important roles in behavioral impulsivity, social affiliation, and mood regulation, respectively

Simpilified DA and 5HT metabolic pathways
Term
Mendelian inheritance
Definition
inheritance pattern for single-gene, dominant/recessive traits
Term
a few examples of single-gene (Mendelian) diseases:
Definition
cystic fibrosis

sickle-cell anemia

Huntington's chorea
Term
polygenetic inheritance/determinism:
Definition
the influence of multiple genes on a physical or behavioral phenotype
Term
penetrance:
Definition
the proportion of individuals who carry genetic vulnerability (often called liability) and express the disorder

example: almost 10% of individuals carry at least some genetic vulnerability to schizophrenia, but less than 1% develop the disorder

penetrance is therefore roughly 1/10, or 10%. This is called incomplete penetrance
Term
endophenotype
Definition
a measureable characteristic, usually unobservable to the naked eye, that marks genetic risk for a disorder. In theory, endophenotypes are useful because they can help us track genetic vulnerability in pedigrees even among those for whom the predisposition has not penetrated

example: patients with schizophrenia evidence dysfunction in smooth pursuit eye movements compared to controls

these irregularities are also found in about 45% of family members, and among those who have not yet developed schizophrenia but do later on

endophenotypes can only be considered markers of genetic vulnerability if they:

1. segregate with illness in the general population

2. are heritable

3. are state independent (i.e., present whether or not illness is present or in remission)

4. co-segregate with the disorder within families

5. are observed at higher rates in affected families than in the population

6. can be measured reliably, and are specific to the illness
Term
biomarker:
Definition
a biological sign of illness that does not meet criteria for an endophenotype.

example: choline concentrations in the cingulate cortex, as measured by PET, correlate with depression severity among those with bipolar disorder. They are therefore state-dependent. This may be useful information, but here choline concentrations mark clinical state (depression severity), not genetic liability.

state dependent biomarkers cannot be used to identify genetic vulnerability in unaffected family members
Term
genetic linkage studies
Definition
genetic linkage refers to the tendency of alleles that are near one another on the same chromosome to be inherited together, or linked. In linkage studies, we

1. obtain a large sample of families containing two children with a trait or disorder*

2. conduct searches for genetic markers with known chromosomal locations that might be 'linked' (i.e., chromosomally proximal) to a gene for the disorder

3. make educated guesses about the location of genes for complex disorders, which must be confirmed/refined in subsequent studies

*it's worth repeating that specifying the phenotype precisely is essential because if we fail to do so, we cannot possibly identify genes for an invalid phenotype

in this sense we are in the unenviable position of working in the wrong direction in psychiatric genetics; we must first guess at the phenotype and then try to infer genes

problem: linkage studies are expensive, produce many false leads, and have not produced replicable results for most psychiatric disorders

Molecular Psychiatry meta analysis of 32 schizophrenia studies including 7413 genotyped probands
Term
Genetically-influenced neural processes and psychopathology
Definition
1. by altering neurotransmitter availability via synthesis and metabolism pathways

example: MAO and COMT are both involved in DA metabolism
2. by altering neurotransmission directly

example: the dopamine transporter (DAT) clears DA from the synapse (reuptake)

MAO, COMT and DAT genes are all implicated in impulsivity because they collectively alter DA function

more efficient DA neurotransmission is associated with pleasure and contentment

less efficient DA neurotransmission is associated with irritability and impulsivity
Term
dopamine
Definition
exploration, motivation, form of dysfuction decreases, and is implicated in impulsivity, ADHD conduct problems antisocial tendencies and substance abuse
Term
norepinephrine
Definition
sociability, alertness and attention. for of dysfunction increase, and is implicated in asociality, aloofness fearfulness and PTSD
Term
serotonin
Definition
avoidance of threat and danger. form of dysfunction deases in implicated in anxiety, depression, obsessionality , and suicide
Term
phobic disorder
Definition
persistent and irrational fears of a specific object, activity, or situation
Term
social phobia
Definition
excessive and persistent fear of embarrassment in social or performance situations
Term
generalized anxiety disorder
Definition
anxiety that occurs across many situations and persists for at least six months
Term
panic disorder
Definition
brief periods of exceptionally intense anxiety accompanied by physical symptoms that include shortness of breath and chest pain
Term
agoraphobia
Definition
excessive anxiety about being in places or situations where escape might be difficult, which leads to pervasive avoidance of situations such as crowds, traveling in cars, and may lead to refusal to leave the home
Term
obsessive compulsive disorder
Definition
persistent ideas, thoughts, or impulses that cause anxiety (obsessions) and irrational behaviors that an individual feels compelled to perform over and over (compulsion)
Term
acute stress disorder
Definition
anxiety that occurs within four days of an extremely traumatic event and lasts less than four weeks
Term
posttraumatic stress disorder
Definition
nxiety associated with the re-experiencing of an extremely traumatic event that occurred some time in the past
Term
separation anxiety disorder
Definition
excessive anxiety concerning separation from home or attachment figures
Term
aniety disorder due to a medical condition
Definition
anxiety due to neuroendocrine conditions, cardiovascular conditions, neurological conditions, etc.
Term
substance-induced anxiety disorder
Definition
anxiety due to use of or withdrawal from a substance (e.g., alcohol, amphetamines, cocaine, anxiolytics)
Term
serotonin transporter (5-HTTLPR)
SLC6A4 polymorphism
Definition
clears serotonin from the synaptic cleft
Term
serotonin 1A receptor (5HT1A)
C(−1019)G promoter polymorphism
Definition
facilitate serotonin neurotransmission
Term
brain-derived neurotrophic
factor(BDNF) gene
val66Met polymorphism
Definition
promotes growth and differentiation of new neurons and synapses
Term
catechol-O-methyltransferase (COMT)
Definition
helps break down monoamines, including serotonin
Term
serotonin 2A receptor (5HT2A)
Definition
facilitate serotonin neurotransmission
Term
tryptophan hydroxylase (TPH) gene
Definition
serotonin precursor
Term
Gene x Environment Interaction and PTSD

certain people are more vulnerable to developing PTSD than others
Definition
heightened startle responses

smaller hippocampal volumes

higher blood glucocorticoid receptor numbers
Term
pain disorder
Definition
pain brought on and maintained to a significant extent by psychological factors
Term
body dysmorphic disorder
Definition
preoccupation with imagined or exaggerated defects in physical appearance (common among those who seek plastic surgery)
Term
hypochondriasis
Definition
preoccupation with fears of having a serious illness
Term
somatization disorder
Definition
recurrent, multiple physical complaints that have no biological basis
Term
concersion disorder
Definition
sensory or motor symptoms without any physical cause
Term
malingering
Definition
physical incapacity faked to avoid responsibility (antisocial PD common)
Term
Causes of Eating Disorders
Definition
cultural factors

pervasive "thinness standard" in dominant culture

self-worth and approval of others dependent on body size

media emphasis on beauty

cross cultural incidence of eating disorders tied to "Westernization"

much lower rates of eating disorders observed among African American Women
biological factors

familial loading suggests a genetic diathesis (mz concordance 23%, dz concordance 9%)

norepinephrine, serotonin, and endogenous opioids



psychological factors

depression

anxiety

perfectionism and obsessive traits

impulsivity, especially in bulimia (e.g., substance abuse)



family influences

direct effects of family criticism

parental psychopathology, substance abuse

struggle for autonomy and control
Term
Treatment Approaches for eating disorders
Definition
cognitive behavior therapy (CBT) focusing on:

perfectionism

distorted body image

improved communication with family members (depending on age; see below)



hospitalization

iatrogenic effects occur in group treatment



pharmacological

antidepressants often used (SSRIs such as Prozac, Zoloft)

long term CBT more effective



family therapy

effectiveness depends on age of patient
Term
antisocial
Definition
absent concern of thers feeling or social norms, a pervasive pattern of rule breaking and presence of conduct disorder
Term
asociality
Definition
characterised by an inability to 'empathise', to feel intimacy with, or to form close relationships with others
Term
longitudinal design
Definition
research test whether causes are present before a disorder has developed. this method is used over time
Term
cross-sectional design
Definition
the causes and effect are measured at the same point in time
Term
epidemiology research
Definition
is the srudy of distribution of disorders in a population

- prevalence= the proportion of people with the disorder wither current or during their life time

- incidence= the proportion of people who developed new cases

- risk factor= variables that are related to the likelihood of developing the disorder
Term
depersonlization
Definition
a feeling of being outside one's body
Term
derealization
Definition
a feeling the world isn't real
Term
the fear circuit
Definition
acts when people are feeling anxious and fealful. this is has been related to amygdala
Term
neuroticism
Definition
a personality trait defined by the tendency to react to events with greater than average negative affect
Term
mowrer's two factor model
Definition
through classical conditions learns to fear something and thur operant conditioning grains relief by avoiding the object
(the dog bite)
Term
interoceptive conditioning
Definition
classical conditioning of panic attacks in response to bodily sensation. ex a person experiences somatic signs of anxiety , then is followed by a panic attack. that panic attack becomes a conditioned response to the somatic changes.
Term
for OCD what areas of the brain light up?
Definition
orbitofrontal cortex, caudate nucleus, and anterior cingulate
Term
medication of anxiety
Definition
benzodiazepine: valium and xanax
antidepressants : tricyclic and selective serotonin reuptake inhibitors
Term
dissociative amnesia
Definition
memory loss typically of a stressful experience
Term
dissociative fugue
Definition
memory loss accompanied by leaving home and establishing a new identity
Term
dissociative identity disorder
Definition
at least two distinct personalities that act independently of each other
Term
somatoform disorder
Definition
the person experiences bodily symptoms that have no known physical causes. they disorders are not voluntary
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