memory part 3

Question 1

memory integration

Answer 1

related memories become interconnected and form generalized knowledge through processes between the medial prefrontal cortex (contains prior knowledge) and the hippocampus (episodic memory)

Question 2

what are the four types of implicit memory and their corresponding brain areas

Answer 2

procedural memory - skills and habits (basal ganglia)
priming - (neocortex)

classical conditioning
skeletal musculature (cerebellum)
emotional responses (amygdala)

Question 3

procedural memory

Answer 3

a type of implicit memory

learned abilities to perform an automatic behaviour or an action

comes from encoded patterns of movement in the brain:
basal ganglia: motor sequence
prefrontal cortex: organization

more immune to forgetting compared to other types of memory

Question 4

how do we develop habits?

Answer 4

before an action becomes routine, we initially rely on explicit memory - after training and or exposure, we begin to rely on implicit memory

Question 5

types of habits

Answer 5

motor action sequences (ex. remembering a password by moving fingers over the pad instead of explicitly recalling

repetitive thoughts and emotions (obsessive compulsive disorder ocd)

basis of some addictions

Question 6

rat T maze study - forming and breaking habits

Answer 6

habit formation
- rats trained in a maze with a reward at a specific end
- used the striatum

breaking habits
- even once the reward was removed, or made gross, the rats didn’t break the habit
- the only way to break it was by inhibiting the prefrontal cortex

Question 7

priming

Answer 7

a type of implicit memory where prior exposure facilitates information processing without awareness

ex. word fragment test
- ps see list of words, asked to complete word fragements
- likely to use words from the list (prior words) to complete the fragments