Final answer:
H.M.'s brain was damaged in the hippocampus and amygdala, resulting in anterograde amnesia and impaired ability to form new memories. However, his implicit memory, which is responsible for learning new skills, remained intact.
Step-by-step explanation:
H.M.'s brain was damaged in the hippocampus and amygdala as a result of his surgery. This damage caused him to experience anterograde amnesia, meaning he was unable to form new memories. However, he was still able to learn new skills, demonstrating that his implicit memory was intact. Implicit memory refers to the unconscious memory of skills and procedures.