H.M. is a patient with a memory disorder who has been studied extensively. One of the most interesting findings for scientist Brenda Milner was H.M.'s performance _________ because it demonstrated evidence of procedural memory.
A)on verbal recall
B)on facial recognition
C)on a mirror-tracing task
D)on a digit-span task
E)on a visual imagery task

Question

Quizplus · Accepted Answer

H.M.'s performance on a mirror-tracing task was particularly interesting because it demonstrated that, despite his severe anterograde amnesia (inability to form new explicit memories), he could still learn and improve on a motor skill task over time. This showed that procedural memory, or the memory for how to do things, was intact and operated independently of his impaired declarative memory system.

HM Is a Patient with a Memory Disorder Who Has