Lecture 7 - memory and the temporal lobe

Question 1

What was removed in HMs surgery

Answer 1

temporal lobe, hippocampus and adjacent cortex.

Question 2

What functions did HM lose

Answer 2

He lost his declarative/explicit memory, but his unconscious procedural/implicit memory remained intact, as shown by the mirror drawing task.

Question 3

Declarative and procedural memory

Answer 3

Declarative is memory and facts, whereas non-declarative is remembering skills and habits

Question 4

Patient RB

Answer 4

Had an ischemic episode after surgery which resulted in anterograde and retrograde amnesia. This was a result of damage to the hippocampus circuit.

Question 5

Rhinal cortex involvement in HMs deficits

Answer 5

Memory damage was exacerbated by damage to the rhinal cortex as shown in Rey-osterreith drawings

Question 6

Patient NA

Answer 6

Damage to the mediodorsal thalamus and mammillary bodies. This caused diencephalic amnesia.

Question 7

Wernicke Korsakoff syndrome

Answer 7

Occurs in heavy drinkers and is caused by a lack of thiamine. Causes memory deficits and damage is done to the mediodorsal thalamus and mamillary bodies.

Question 8

e