Psychology 103 - Physiological Psychology » Spring 2022 » Chapter 9 Quiz 3

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Question #1
Most of the cell death associated with early development of the brain is
A.   apoptotic.
B.   passive.
C.   necrotic.
Question #2
Apoptosis is safer than necrosis because apoptosis does not involve
A.   inflammation.
B.   synapse rearrangement.
C.   neuron death.
D.   suicide.
E.   degeneration.
Question #3
Neurotrophins
A.   are supplied to neurons by their synaptic targets.
B.   promote neuron death.
C.   are life-preserving chemicals for neurons.
Question #4
The general effect of synapse rearrangement is to
A.   increase the ratio of axosomatic synapses to axodendritic synapses.
B.   focus the output of each neuron on fewer postsynaptic cells.
C.   increase the number of different target cells innervated by each neuron.
D.   increase the number of synaptic contacts received by each neuron.
E.   increase the number of synapses.
Question #5
The development of the human brain is unique in that
A.   it develops so quickly.
B.   there is no early reorganization.
C.   there is no early cell death.
D.   it develops so slowly.
E.   the PNS develops before the CNS.
Question #6
The human brain grows after birth because of
A.   all of these
B.   myelination.
C.   synaptogenesis.
D.   increased dendritic branching.
E.   none of these
Question #7
Synaptic density in the primary visual cortex of infants
A.   almost reaches adult levels by the seventh or eighth year.
B.   is maximal by the seventh or eighth postnatal month, and then it declines.
C.   follows the same course of development as the myelination of the prefrontal cortex.
Question #8
The course of human cognitive development is thought to reflect the development of the
A.   posterior parietal cortex.
B.   secondary neocortex
C.   prefrontal cortex.
D.   hippocampus.
E.   hypothalamus.
Question #9
Perseveration is the tendency to
A.   continue making formerly correct responses that are currently incorrect.
B.   continue making formerly incorrect responses that are currently correct.
C.   form permanent short-term memories.
D.   fasciculate.
E.   form long-term working memories.
Question #10
Perseverative errors are often made by children between the ages of
A.   continue making formerly incorrect responses that are currently correct.
B.   form permanent short-term memories.
C.   fasciculate.
D.   continue making formerly correct responses that are currently incorrect.
E.   form long-term working memories.
Question #11
Perseverative errors are often made by children between the ages of
A.   7 to 12 months.
B.   2 to 4 years.
C.   4 to 8 years.
D.   1 to 2 years.
E.   3 to 5 months.
Question #12
Experiences that permit information in brain genetic programs to be expressed and maintained are called
A.   instructive experiences.
B.   none of these
C.   sensitive experiences.
D.   permissive experiences.
E.   critical experiences.
Question #13
In comparison to the cortices of rats that had been reared in enriched environments, the cortices of rats that had been reared by themselves in barren cages
A.   none of these
B.   had fewer synapses per neuron.
C.   had less dendritic development.
D.   were thinner.
E.   all of these
Question #14
How long does one eye have to be deprived of stimulation early in life in order to reduce its ability to activate visual cortex?
A.   a few days
B.   a few seconds
C.   a few years
D.   a few months
E.   a few minutes
Question #15
Studies have shown that about ______ new neurons are created each day in each hippocampus of humans.
A.   700
B.   12
C.   16
D.   8

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