NUR 6660 EXAM 4
QUESTIONS AND
CORRECT DETAILED
ANSWERS TESTED AND
GRADED A+ LATEST
UPDATE
Selective attention is due to what area of the PFC
malfunctioning? - ANS✔✔---dorsal ACC (anterior cingulate
cortex issues with sustained attention are: - ANS✔✔---
difficulty completing tasks disorganization
trouble sustaining mental effort issues with selective
attention are: - ANS✔✔---difficulty with detail carless
Page 1 of 26
,mistakes not listening losing things being distracted
forgetting things
what symptoms of impulsitivity are observed? - ANS✔✔---
talking excessively blurting things out not waiting ones turn
interrupting what part of the brain modulates hyperactivity? -
ANS✔✔---prefrontal cortex what part of the brain modulates
impulsitivity? - ANS✔✔---orbitofrontal cortex
what are some key observations in the prefrontal cortex as it
relates to ADHD? - ANS✔✔---orbitofrontal cortex (OFC)--
impulsivity and hyperactivity
DLPFC/DaCC-- sustained/selective attention issues
how do NE and DA amounts manifest in relation to
fatigue/anxiety? - ANS✔✔---too little NE and DA = fatigue
too much = anxiety what two receptors in the PRC are thought to
be involved with ADHD treatment? - ANS✔✔---alpha 2 a D1
how does ADHD affect NE and DA levels? - ANS✔✔---NE
levels low, signal reduced
DA levels low, noise increased
results in: fidget and inattention
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, how should you treat NE and DA in adhd? - ANS✔✔---increase
NE
Increase DA
what receptors does NE stimulate in the postsynapse? -
ANS✔✔---alpha 2 a; even better effect when beta1 receptors
also stimulated what effect does DA have on receptors and
what does this cause? -
ANS✔✔---decreases the noise and prevents inappropriate
connections from taking place through stimulating D1 receptors
what effect does NE have on receptors and what does this cause?
-
ANS✔✔---increases the incoming signal and allows for
increase connections between prefrontal networks through
stimulation of alpha 2A receptors
what effect do slow dose stimulants have? - ANS✔✔---amplify
tonic NE and DA signals
block NET in PFC
block DAT in nucleus accumbens
why do slow dose stimulants have less abuse potential? -
ANS✔✔---they dont occupy DAT too quickly or extensively,
which is thought to reduce abuse potential what is salience
provoked phasic firing? - ANS✔✔ bursts of DA release this can
Page 3 of 26
QUESTIONS AND
CORRECT DETAILED
ANSWERS TESTED AND
GRADED A+ LATEST
UPDATE
Selective attention is due to what area of the PFC
malfunctioning? - ANS✔✔---dorsal ACC (anterior cingulate
cortex issues with sustained attention are: - ANS✔✔---
difficulty completing tasks disorganization
trouble sustaining mental effort issues with selective
attention are: - ANS✔✔---difficulty with detail carless
Page 1 of 26
,mistakes not listening losing things being distracted
forgetting things
what symptoms of impulsitivity are observed? - ANS✔✔---
talking excessively blurting things out not waiting ones turn
interrupting what part of the brain modulates hyperactivity? -
ANS✔✔---prefrontal cortex what part of the brain modulates
impulsitivity? - ANS✔✔---orbitofrontal cortex
what are some key observations in the prefrontal cortex as it
relates to ADHD? - ANS✔✔---orbitofrontal cortex (OFC)--
impulsivity and hyperactivity
DLPFC/DaCC-- sustained/selective attention issues
how do NE and DA amounts manifest in relation to
fatigue/anxiety? - ANS✔✔---too little NE and DA = fatigue
too much = anxiety what two receptors in the PRC are thought to
be involved with ADHD treatment? - ANS✔✔---alpha 2 a D1
how does ADHD affect NE and DA levels? - ANS✔✔---NE
levels low, signal reduced
DA levels low, noise increased
results in: fidget and inattention
Page 2 of 26
, how should you treat NE and DA in adhd? - ANS✔✔---increase
NE
Increase DA
what receptors does NE stimulate in the postsynapse? -
ANS✔✔---alpha 2 a; even better effect when beta1 receptors
also stimulated what effect does DA have on receptors and
what does this cause? -
ANS✔✔---decreases the noise and prevents inappropriate
connections from taking place through stimulating D1 receptors
what effect does NE have on receptors and what does this cause?
-
ANS✔✔---increases the incoming signal and allows for
increase connections between prefrontal networks through
stimulation of alpha 2A receptors
what effect do slow dose stimulants have? - ANS✔✔---amplify
tonic NE and DA signals
block NET in PFC
block DAT in nucleus accumbens
why do slow dose stimulants have less abuse potential? -
ANS✔✔---they dont occupy DAT too quickly or extensively,
which is thought to reduce abuse potential what is salience
provoked phasic firing? - ANS✔✔ bursts of DA release this can
Page 3 of 26
