The retrograde amnesia associated with closed-head injury has been frequently studied in laboratory animals by
A) hitting them on the head with a little rubber hammer.
B) administering acetylcholine agonists.
C) administering electroconvulsive shock.
D) using multiple-trial learning tests that must be learned over several days.
E) both B and D
Question 2
Amnesia that is produced by a blow to the head that does not penetrate the skull is called __________ amnesia.
A) postconcussion
B) posttraumatic
C) retrograde
D) anterograde
E) postepisodic
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