Neuropsychology Exam 3 Questions With
Correct Answers
What are the spatial functions of the posterior parietal lobe? - CORRECT
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ANSWER✔✔-Egocentric space, such as object location for action, | | | | | | | |
guidance of movement and spatial navigation.
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For what type of attention is the parietal lobe very important? -
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CORRECT ANSWER✔✔-Visual attention
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What are the other functions of the posterior parietal lobe (listed as
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|"vaguely spatial") - CORRECT ANSWER✔✔-Vaguely spatial functions
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including arithmetic, reading language, and tasks requiring sequencing.
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How are dizziness and vertigo different? - CORRECT ANSWER✔✔-
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dizziness= generic |
| vertigo= spinning sensation
| |
What are the symptoms of Menière's disease? What is thought to be
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the cause? How common is it? How is it treated? - CORRECT
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ANSWER✔✔-symptoms: vertigo attacks, hearing loss attacks, tinnitus, | | | | | | |
fullness feeling in ears, duration up to 24 hours, unpredictable
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,cause: too much fluid in inner ear
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common: 15 in 100,000 | | |
treated: syptomatic during attack (anti-emetics, dramamine), diuretic
| | | | | | |
for maintenance, histamine antagonist
| | |
Why is there a division between somatosensory and posterior parietal
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disorders? - CORRECT ANSWER✔✔-lesions in the post-central gyrus
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The Anterior zone of the parietal lobe is for somatosensitization (touch,
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proprioception, temperature) | |
The Posterior zone is for integration of input from vision and other
| | | | | | | | | | | |
senses, for the purpose of movement (Orientation)
| | | | | |
What are the symptoms in cases of focal lesions in postcentral gyrus? -
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CORRECT ANSWER✔✔-high sensory thresholds- more pressure
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required to fire | |
---two point sensory- 2 pts affected instead of just one
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---touch
,impaired sense of position- don't know properly where limbs are
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How are sensory thresholds measured? - CORRECT ANSWER✔✔-
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pressure to fire | |
Absolute threshold: the lowest level at which a stimulus can be detected
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Recognition threshold: the level at which a stimulus can be detected
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and recognized
| |
Differential threshold: the level at which an increase in a detected
| | | | | | | | | | |
stimulus can be perceived
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Terminal threshold: level beyond which stimulus can no longer be
| | | | | | | | | |
detected
What are phantom limbs, and phantom limb pain? - CORRECT
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ANSWER✔✔-sensation that missing limbs is still moving or (often) | | | | | | | | |
causing pain. Thought to be rewiring of somatosensory cortex
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What is a mirror box in the context of phantom limbs, and what is it
| | | | | | | | | | | | | | |
used for? - CORRECT ANSWER✔✔-A mirror box has two mirrors in the
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center used as a visual override of wiring problems in the brain
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, It is used to trick the patient's brain into thinking it is moving the
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phantom limb from an uncomfortable position granting relief.
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Reflected limb, visual information overrides the pain
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What does the mirror box substitute that is missing in people with
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phantom limbs? - CORRECT ANSWER✔✔-(Video: Mirror Box) - Seeing
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the hand you know isn't there, gives a release of the phantom limb pain
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What is astereognosis (also astereognosia) and how is it assessed? -
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CORRECT ANSWER✔✔-= inability to recognize objects by touch
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(Touch signals are coming in, can't figure out what it is)
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Test for this problem by blindfolding the patient, placing an object in the
| | | | | | | | | | | |
hand, and asking the person to recognize and name it by touch only.
| | | | | | | | | | | | | |
A pattern is placed on a blindfolded subject's palm for 5 seconds then
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placed in with a mix of others. The task is to identify the original pattern
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after handling all six patterns.
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Correct Answers
What are the spatial functions of the posterior parietal lobe? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-Egocentric space, such as object location for action, | | | | | | | |
guidance of movement and spatial navigation.
| | | | |
For what type of attention is the parietal lobe very important? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-Visual attention
| |
What are the other functions of the posterior parietal lobe (listed as
| | | | | | | | | | |
|"vaguely spatial") - CORRECT ANSWER✔✔-Vaguely spatial functions
| | | | | | |
including arithmetic, reading language, and tasks requiring sequencing.
| | | | | | |
How are dizziness and vertigo different? - CORRECT ANSWER✔✔-
| | | | | | | |
dizziness= generic |
| vertigo= spinning sensation
| |
What are the symptoms of Menière's disease? What is thought to be
| | | | | | | | | | | |
the cause? How common is it? How is it treated? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-symptoms: vertigo attacks, hearing loss attacks, tinnitus, | | | | | | |
fullness feeling in ears, duration up to 24 hours, unpredictable
| | | | | | | | |
,cause: too much fluid in inner ear
| | | | | |
common: 15 in 100,000 | | |
treated: syptomatic during attack (anti-emetics, dramamine), diuretic
| | | | | | |
for maintenance, histamine antagonist
| | |
Why is there a division between somatosensory and posterior parietal
| | | | | | | | | |
disorders? - CORRECT ANSWER✔✔-lesions in the post-central gyrus
| | | | | | |
The Anterior zone of the parietal lobe is for somatosensitization (touch,
| | | | | | | | | | |
proprioception, temperature) | |
The Posterior zone is for integration of input from vision and other
| | | | | | | | | | | |
senses, for the purpose of movement (Orientation)
| | | | | |
What are the symptoms in cases of focal lesions in postcentral gyrus? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-high sensory thresholds- more pressure
| | | | | |
required to fire | |
---two point sensory- 2 pts affected instead of just one
| | | | | | | | |
---touch
,impaired sense of position- don't know properly where limbs are
| | | | | | | | |
How are sensory thresholds measured? - CORRECT ANSWER✔✔-
| | | | | | |
pressure to fire | |
Absolute threshold: the lowest level at which a stimulus can be detected
| | | | | | | | | | |
Recognition threshold: the level at which a stimulus can be detected
| | | | | | | | | | |
and recognized
| |
Differential threshold: the level at which an increase in a detected
| | | | | | | | | | |
stimulus can be perceived
| | |
Terminal threshold: level beyond which stimulus can no longer be
| | | | | | | | | |
detected
What are phantom limbs, and phantom limb pain? - CORRECT
| | | | | | | | | |
ANSWER✔✔-sensation that missing limbs is still moving or (often) | | | | | | | | |
causing pain. Thought to be rewiring of somatosensory cortex
| | | | | | | |
What is a mirror box in the context of phantom limbs, and what is it
| | | | | | | | | | | | | | |
used for? - CORRECT ANSWER✔✔-A mirror box has two mirrors in the
| | | | | | | | | | | |
center used as a visual override of wiring problems in the brain
| | | | | | | | | | |
, It is used to trick the patient's brain into thinking it is moving the
| | | | | | | | | | | | | |
phantom limb from an uncomfortable position granting relief.
| | | | | | | |
Reflected limb, visual information overrides the pain
| | | | | |
What does the mirror box substitute that is missing in people with
| | | | | | | | | | | |
phantom limbs? - CORRECT ANSWER✔✔-(Video: Mirror Box) - Seeing
| | | | | | | | |
the hand you know isn't there, gives a release of the phantom limb pain
| | | | | | | | | | | | |
What is astereognosis (also astereognosia) and how is it assessed? -
| | | | | | | | | | |
CORRECT ANSWER✔✔-= inability to recognize objects by touch
| | | | | | |
(Touch signals are coming in, can't figure out what it is)
| | | | | | | | | |
Test for this problem by blindfolding the patient, placing an object in the
| | | | | | | | | | | |
hand, and asking the person to recognize and name it by touch only.
| | | | | | | | | | | | | |
A pattern is placed on a blindfolded subject's palm for 5 seconds then
| | | | | | | | | | | | |
placed in with a mix of others. The task is to identify the original pattern
| | | | | | | | | | | | | | |
after handling all six patterns.
| | | |
