Principles of Neuroscience Lecture 19 Memory I Flashcards Preview

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Flashcards in Principles of Neuroscience Lecture 19 Memory I Deck (21)
0

What are the two different types of memory?
Describe each briefly

Explicit: facts, working memory if short term
Implicit: long term memory of processes that can't be explained

1

What are the different types of implicit memory?
Describe each

1. Sensitisation: we become habituated to a certain stimulus, and we no longer perceive it
2. Conditioning: one stimulus signals for another stimulus
3. Operant conditioning: our response depends on the outcome of the stimulus
4. Procedural: walking, running etc

2

What is working memory an example of ?

Explicit memory

3

Where is working memory stored?

Prefrontal cortex
Intra parietal cortex

4

What are the components of working memory?

1. Central executive
2. Phonological loop
3. Spatiotemporal sketch pad

5

What is a memory trace, and how long does it last in working memory?

It is the change in organisation of neurons following learning

It lasts from seconds to minutes

6

What is declarative memory?

It is another name for explicit memory

7

What are the divisions of explicit memory?

1. Semantic
2. Episodic

8

Where is explicit memory stored?

In the neocortex

9

Which area is important for conversion of working memory to long term memory?

Hippocampus

10

What is required for conversion of a memory from short term to long term?

1. Repetition
2. Sleep: REM and slow wave

11

Describe the structure of memory

It is the connections between neurons, a network.

12

Describe Hebbian theory

Continual interaction between two neurons will form a strong connection

13

A single neuron is involved in ... memory/memories

Many

14

A single memory relies on ... neurons

Many

15

Describe what is meant by associative memory, in terms of Hebbian theory

When one part of a stimulus is recalled, the whole memory is recalled, due to the network of connections between neurons

16

Where is the hippocampus located?

Primitive part of the cerebral cortex in temporal lobe

17

What does damage to the hippocampus lead to ?

Long term memories can no longer be made

18

What is the function of the neocortex?

Storage of long term memories

19

What does interaction between the neocortex and the hippocampus lead to?

Storage of long term memories

20

Describe what is meant by reliving an event

When we recall a memory, the part of the brain that was active at the time is again active

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