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10 Cards in this Set
- Front
- Back
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The basal ganglia are considered part of what system?
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extrapyramidal motor system
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Balint syndrome involves what three characteristics?
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1) inablity to pereive elements in visual field as a whole
2) optic ataxia (optic apraxia) involving impairment in using vision to reach 3) difficulty seeing into the periphery of the visual field |
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What lesions are associated with Balint's syndrome?
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Bilateral high region of the parietal lobe
Over posterior-lateral occipital and inferior temporal regions. |
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Ballismus involves what?
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intermittent violent flinging actions with contraction of proximal limb muscles that resemble chorea. Usually affects one side of the body (hemibalismus).
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Barbituates are associated with slowing or more rapid motor movements?
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psychomotor slowing
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Bell's palsy is associated with which cranial nerve?
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inflammation of the seventh (facial) cranial nerve causing motor paralysis with no sensory component.
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Beta is the probability of making what type of error?
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type II error.
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Beta in EEG refers to frequencies of what?
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Frequencies greater than 13 Hz. Beta activity is associated with wakefulness with beta of 18-24 induced by barbiturates or benzodiazepines.
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What type of visual loss is associated with optic chiasm damage to both crossing fibers from the nasal portion of the retina?
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Bitemporal hemianopsia.
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Bulbar palsy is what?
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dysarthria - difficulty in swallowing (dysphagia) and unresponsiveness of the gag reflex from inury to the bulbar cranial nerves that innervate muscls o fthe soft palat, pharynx, larynx, and tongue. Common causes are amyotrophic lateral sclerosis, vertebral artery stenosis, Guillain-Barre syndrome, chronic meningitis, tumors at the base of the skull, and myasthenia gravis.
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