Consider the following scenarios. Which person displays characteristic signs of a persistent vegetative state?
a. Brian is in a persistent state of unconsciousness; he cannot be awakened and does not respond to painful stimuli.
b. Sienna is learning to walk after her automobile accident; however, she still cannot communicate and suffers significant cognitive impairment.
c. Anil is in a coma; his mother is hopeful because he occasionally opens his eyes and sometimes even smiles or cries, but Anils doctors tell her that these actions are random.
d. Muriel was in a deep coma; she now squeezes her mothers hand when she hears her voice, but she cannot open her eyes or speak.
Question 2
Following cardiac arrest, Teresas father Ike is in a coma. Ikes doctor explains to Teresa that his brain activity shows ____.
a. alpha and theta waves that are consistent with sleep
b. alpha and theta waves that are distinct from a normal sleeping pattern
c. only alpha waves that are consistent with sleep
d. only alpha waves that are distinct from a normal sleeping pattern
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