MSN 671 Chapter 4 Stahl Exam
Questions and Answers 100%
Pass
B. Glutamate and glycine - CORRECT ANSWER-The activation of N-methyl-d-
aspartate (NMDA) receptors requires the presence of:
A. Glutamate only
B. Glutamate and glycine.
C. Glutamate, glycine and magnesium.
Hypofunctioning NMDA receptors - CORRECT ANSWER-A leading hypothesis
of psychosis is:
A. Hyperfunctioning NMDA receptors.
B. Hypofunctioning NMDA receptors.
C. Excessive DA release in the NA and reduced DA release in the PFC. -
CORRECT ANSWER-Dysfunction at NMDA-receptor containing synapses is
, hypothesized to lead to excessive glutamate release in the ventral tegmental area.
Downstream this is hypothesized to lead to what effects on dopamine (DA):
A. Excessive DA release in the nucleus accumbens (NA) and excessive DA release
in the prefrontal cortex (PC)
B. Reduced DA release in the NA and reduced DA release in the PFC
C. Excessive DA release in the NA and reduced DA release in the PFC
D.Reduced DA release in the NA and excessive DA release in the PFC.
C. Rareley used synapses are pruned, while frequently used synapses are preserved.
- CORRECT ANSWER-The neurodevelopmental hypothesis of schizophrenia
centers heavily around the idea that aberrant competitive elimination occurs.
Competitive elimination is a stage of neurodevelopment in which:
A. Embryonic stem cells either die or differentiate into immature neurons.
B. Newly sprouted axons compete with each other to form synaptic connections at
dendrites.
C.Rarely used synapses are pruned while frequently used synapses are preserved.
C. Serotonin, glutamate, dopamine (SGD) - CORRECT ANSWER-What three
neurotransmitter systems are implicated in the neuropathology of psychosis?
A. Dopamine, norepinephrine, serotonin.
B. Norepinephrine, serotonin, glutamate
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Questions and Answers 100%
Pass
B. Glutamate and glycine - CORRECT ANSWER-The activation of N-methyl-d-
aspartate (NMDA) receptors requires the presence of:
A. Glutamate only
B. Glutamate and glycine.
C. Glutamate, glycine and magnesium.
Hypofunctioning NMDA receptors - CORRECT ANSWER-A leading hypothesis
of psychosis is:
A. Hyperfunctioning NMDA receptors.
B. Hypofunctioning NMDA receptors.
C. Excessive DA release in the NA and reduced DA release in the PFC. -
CORRECT ANSWER-Dysfunction at NMDA-receptor containing synapses is
, hypothesized to lead to excessive glutamate release in the ventral tegmental area.
Downstream this is hypothesized to lead to what effects on dopamine (DA):
A. Excessive DA release in the nucleus accumbens (NA) and excessive DA release
in the prefrontal cortex (PC)
B. Reduced DA release in the NA and reduced DA release in the PFC
C. Excessive DA release in the NA and reduced DA release in the PFC
D.Reduced DA release in the NA and excessive DA release in the PFC.
C. Rareley used synapses are pruned, while frequently used synapses are preserved.
- CORRECT ANSWER-The neurodevelopmental hypothesis of schizophrenia
centers heavily around the idea that aberrant competitive elimination occurs.
Competitive elimination is a stage of neurodevelopment in which:
A. Embryonic stem cells either die or differentiate into immature neurons.
B. Newly sprouted axons compete with each other to form synaptic connections at
dendrites.
C.Rarely used synapses are pruned while frequently used synapses are preserved.
C. Serotonin, glutamate, dopamine (SGD) - CORRECT ANSWER-What three
neurotransmitter systems are implicated in the neuropathology of psychosis?
A. Dopamine, norepinephrine, serotonin.
B. Norepinephrine, serotonin, glutamate
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
