Week 11

Question 1

Describe the network of memory traces

Answer 1

The formation of networks within the memory to encode information and memories. I.e. linked subjects, chair, sitting, legs, sofa

Question 2

Memory traces are associated _____ info, or ____ info

Answer 2

Semantic, episodic

Question 3

As learning increases, the _____ diminishes, and your _____ decreases

Answer 3

rate of improvement, reaction time

Question 4

Describe Hebbian Theory

Answer 4

Neurons that are activated simultaneously, wire together. After repeated stimulation, synaptic transmission is quicker. “Wire together, fire together. “

Question 5

Describe long term potentiation (LTP)

Answer 5

Long lasting facilitation of synaptic transmission. Chain of neurones becomes more ingrained. Learned circuits, ingrained, easier to remember for next time, becomes more permanent. “Riding a bike”

Question 6

____ and ____ regions of the brain are activated when we are encoding information that we will later remember.

Answer 6

Prefrontal, medial temporal

Question 7

The _____ is arguably the most important brain structure in long term memory, featuring memory encoding

Answer 7

hippocampus

Question 8

When memory is consolidated, it is moved from the _____ to the _____

Answer 8

hippocampus, cortex

Question 9

Damage to the MTL can cause ______

Answer 9

memory loss, the MTL is crucial to memory creation

Question 10

_____ memories are dependant on the ____ for storage

Answer 10

recent, MTL

Question 11

________ memories are stored somewhere outside the ____ (aka somewhere different!)

Answer 11

remote, MTL

Question 12

Patient HM had his ____ removed, and describe his experience

Answer 12

severe antereograde amnesia, could make new memories, short term memory (conditioning, priming e.t.c.) intact. Implicit memory intact.

Question 13

Electrical stimulation of _____ enabled some patients to recall information that they could not previously recall.

Answer 13

Temporal lobe

Question 14

Is there evidence to suggest that there is still traces of memories evident for ‘forgotten memories’? Discuss and extrapolate.

Answer 14

Yes, subjects remembered forgotten noun-number pairs better, indicating some element of the ‘forgotten’ memory remains.

Question 15

Discuss the rate of LTP increase/decrease in relation to the behavioural performance and forgetting.

Answer 15

Rate of increase in LTP is similar to the rate of behavioural improvement by learning, rate of LTP decrease is similar to the rate of forgetting.