• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/84

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

84 Cards in this Set

  • Front
  • Back
The prefrontal cortex is a major area for ___________________
Judgment, EF, decision making
Primary divisions of the PFC include...
Dosolateral Prefrontal Cortex (DLFPC)
cognitive fucntioning (EF, prob. solv., analyze)
Orbito Frontal Cortex (OF)
Impulses, compulsions, drives
Anterior Cingulate Cortex (ACC)
Top (dorsal) related to selective attention
Lower (ventral or subgenual) related to emotions such as depression and anx
Ventromedial PFC
Emotional processing
Secondary divisions of the PFC include....
Hippocampus - memory, neurgenesis
Amygdala - fear processing (emotion)
NT Nodes
cell bodies in brainstem etc
projections to PFC etc
Some overlap, some are unique
What activity can help determine how well the PFC is fx'ing?
Stroop Color Word Task
DA projections are primarily ascending or descending?
Ascending
What are the two DA projections?
Ventral tegmental area
thalamus
What does the ventral tegmental area regulate?
movement, pleasure and reward, cognition, psychosis (esp. positive symptoms)
NE projections are primarily ascending or descending?
Both
The ascending NE pathway begins with what/where and regulated what?
Locus Coeruleus,
mood, arousal, cogntions
5HT projections are primarily ascending or descending?
Both
5HT projections are involved in....
mood, anxiety, sleep, pain
what are the two primary AcH pathways?
brain stem, basal forebrain
AcH medications are commonly a treatment for what diagnosis?
Alzheimer's
Describe the biological components of PTSD
Hippocampus has stored traumatic memories that can trigger the amygdala. The amygdala releases cortisol which changes breathing
Histamine (HA) projections begin in the________and continue to the
Tuberomammilary nucleus (TMN) in Hy to PFC, SC
HA is related to the control of
Arousal, wakefulness and sleep
can make you sleep but make it difficult to stay asleep
What is the NT and route in the pain pathway?
Primarily NE, but also 5HT
from lateral tegmental NE cell system, descending into spinal cord, in brain stem
"Classic neuro-transmission occurs via
G-protein linked receptors
Most psychotropic drugs target _________ or ______________
transporters or G-protein linked receptors
the purpose of transporters is to
transport NT across membranes and/or facilitate re-storage of NT in vesicles
Plasma membrane transporters are AKA _____________ and are classified as ____________________
reuptake pump
SLC6 (NT's besides Glu) or SLC1 (Glu only)
SLC = solute carrier
How are SSRI's selective?
selective in its affinity for allosteric sites; when something binds allosterically in prevents the NT from binding and it is not taken back up into the cell
Where does the energy for NT transport come from?
sodium pumps (Na+) constantly pumping sodium out of the cell
True/Fale: Transporters only have binding sites for NA
False, they also have monoamine sites and allosteric sites
What process and chemical(s) can cause increased concentrations of GABA in the synapse?
GAT1 targeting SNRIs like anitconvulsant tiagabine/Gabitril; also alcohol
What results from inhibited Glu?
Potential for lower levels of excitation, cell damage
Which NT does not have a transport system? How does it work?
Histamine: it targets other actions, such as enzymatic destruction
Why do amphetamines have a phasic burst?
Targets DATs and NETs (presynaptic pumps) as well as VMATs (intracellular synaptic vesicle transporter) causing a reversal of reuptake pump action and a flood of DA into synapse
True/False: Constitutive activity = no activity
False: it = no CHANGE in activity, i.e. baseline
What is required for an antagonist to alter effects of a chemical?
Presence of an agonist; otherwise it is neutral (prevents change while maintaining baseline)

EX. GABA-A antagonist Flumazenil
-used for Benzo OD bc it blocks PAM
-unmedicated, non anxious ppl, show no response (silent agonist)
-unmedicated anxious ppl show increase panic/anx bec inhibition of GABA stops
What is the opposite of an agonist?
inverse agonist
What are the types of ion channels, what is the difference b/w them?
Ligaand-gated - opened by NTs
Voltage sensitive - opened by charge
Which is faster, ligand-gated or G-protein linked channels?
Ligand-gated; though both begin with 1st messenger NTs
Explain net effects
eg - partial agonist = net agonist in presence of full agonist; antagonist = net agonist in presence of inverse agonist
Why is it ok/not ok to drink alcohol with benzos?
Its not b/c Benzos increase GABA activity as does alcohol
What is the difference between positive/negative allospheric modulation?
PAM boosts NT effect, opens more and more often than a full agonist alone, but only in the presence of the NT
Ex - benzo's + alcohol
NAM blocks/reduces NT effect; closes more/more often than NT alone
What are some of the basics for understanding tolerance, withdrawal, drug interactions, cross dependence?
Desensitization - prolonged exposure to agonist
Inactivation - stablized closed after inverse agonist
Net effects
Speed of ion channels vs G-protein linked
Competitive binding vs allosteric
Explain excitation-secretion coupling
sodium channels first activation on the axon, later calcium opens which pulls in vesicles towards the membrane , all the positive NTs are pumped in; part of signal transduction
What percent of meds target enzymes? Are they usually inhibitory/excitatory?
10%, inhibitory
True/false: enzyme inhibition is permanent?
False
Describe the rational approach to treatment outlined by Stahl. What are its shortfalls?
Construct a diagnosis
Deconstruct the diagnosis into its component symptoms
Match each symptom to its hypothetically malfunctioning circuit
Consider the NTs that theoretically regulate each circuit
Select a tx that targets the NT regulating the circuit
Add or switch to another tx if the symptom is not relieved
Repeat for each sx until the pt is asymptomatic or in remission
Shortcomings:
knowing when to switch vs combine
how long to wait to combine
difficulty interpreting/predicting interaction effects
working from clinical experience/intuition to research questions
What are the 5 levels of mood descriptors?
Mania
Hypomania
Euthymic
Dysthymia
Depression
What are the 3 temperaments?
Hyperthymic (above normal but not psychopathic)
Depressive (bw euthymic and dysthymic, not pathological)
Cyclothymic
Malfunctioning circuits associated with Major Depressive Episode
PFC - concentration, interest, pleasure, psycho-motor, mental fatigue, guilt, suicidal, worthlessness, mood
Amygdala - guilt, suicidality, worthlessness, mood
Striatum - psychomotor fatigue
Hypothalamus - sleep, appetite (only sxs not caused by PFC)
Cerebellum - psychomotor
NA - concentration, interest, pleasure
What is the difference b/w MAOI’s, tricyclic antidepressants, and SSRI’s?
MAOI's are Dopamine-Epinepherine-Norepinephrine-Seratonin agonists
Tricylcic Anti-d's are Norephinephrine-Serotonin agonists
SSRIs are Serotonin agonists
Name some brand name SSRI’s
Prozac, Zoloft, Paxil
Name some name brand SNRIs
Effexor, Cymbalta
Name some name brand NDRI's
Wellbutrin, Zyban
What is a name brand NRI
Strattera
most likely consequence of neuroleptic drugs
Tardive dyskinesia
Chlorpromzaine
aka Thorazine
neuroleptic drug
Tricyclic drugs
imipramine
clomipramine
amitryptyline
SSRI's
fluoxetine
sertraline
paroxetine
Straterra
Lexapro
Cymbalta
Saragem
Luvox
Celexa
Paxil
fluoxetine
Prozac
SSRI
sertraline
Zoloft
SSRI
paroxetine
Paxil
SSRI
MAOI's
phenelzine
tranylcypromine
Nardil
phenelzine
Parnate
tranylcypromine
what class of drugs are most widely prescribed for anxiety?
Benzodiazepines
diazepam
Valium (benzo)
alprazolam
Xanax (benzo)
clonazepam
Klonopin (benzo)
lorazepam
Ativan (benzo)
triazolam
Halcion (benzo)
Barbituates
replaced by benzo's for anxiety bc they're safer
Thiopental
barbituate
amabarbital
Barbituate
secobarbital
Barbituate
conventional antipsychotics are more useful in treating what symptoms of schizophrenia?
positive
Haloperiodal
aka Haldol
conventional antipsychotic
OCD medications
Anafranil (clomipramine)
Prozac (fluoxetine)
Luvox (fluvoxamine)
Paxil (paroxetine)
Zoloft (sertraline)
Celexa (citalopram)
serotonin hypothesis of OCD
medications that reduce OCD sx's increase available levels of serotonin
serotonin antagonists (atypical antipsychotics) increase OCD sx's in patients, but not in controls
Anticholinergic Effects
block Ach
dry mouth
blurred vision
constipation
memory impairment
urinary retention
confusional states
extrapyramidal effects
dopamine blockade in basal ganglia
Parkinson=like effects: ridigity, shffling gaint, tremor, flat affect, lethargy
dystonias: spasms in neck and other muscle groups
akathisia: intense, uncomfortable sense of inner restlessness
tardive dyskinesia: often a persistent movement disorder (lip smacking, writhing movements, jerky movements)
autonomic effects
especially orthostatic hypotension, which can cause dizziness and imbalance, and in the elderly esp can cause falls and fractures
unclassified antidepressant
does not work selectively on serotonin levels
Wellbutrin
Lithium is prescribed to treat
Bopilar I
Buspar is prescribed to treat
anxiety disorders
haloperidol is prescribed to treat
Schizophrenia and Tic Disorders
withdrawal from ____________ (type of drug) can be fatal is done abruptly
benzodiazepine (Valium)
has a potential for addiction
withdrawal from alcohol can include
dangerous seizures
tricyclic antidepressants
block the reuptake of norep. and serotonin
cause anticholinergic side effects
more side effects than SSRIs
MAOIs
block the enzyme that breaks down norep. and serotonin
have to avoid foods with thyramine (red wine, cheeses, etc)