multi store model Flashcards

1
Q

What is the role of the Sensory Register in memory?

A

The Sensory Register is responsible for dealing with all sensory information that comes our way.

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2
Q

What is the duration of the Sensory Register?

A

The duration of the Sensory Register is very brief, approximately 250 milliseconds.

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3
Q

What is the capacity of the Sensory Register?

A

The capacity of the Sensory Register is very large due to dealing with vast amounts of sensory information.

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4
Q

How is information encoded in the Sensory Register?

A

Information in the Sensory Register is modality-specific, dealing with different senses.

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5
Q

What are the two main components of the Sensory Register?

A

The two main components are iconic memory (for visual information) and echoic memory (for auditory information).

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6
Q

How does information move from the Sensory Register to STM?

A

When we pay attention to the information entering the Sensory Register, it is sent to our Short-Term Memory (STM).

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7
Q

What happens when information is attended to in the Sensory Register?

A

Information that is attended to is passed to the Short-Term Memory (STM).

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8
Q

What is the capacity of Short-Term Memory?

A

The capacity of STM is limited to 7 ± 2 items.

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9
Q

What is the duration of information in Short-Term Memory?

A

The duration of information in STM is between 18-30 seconds.

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10
Q

How is information coded in Short-Term Memory?

A

Information in STM is coded in an acoustic format.

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11
Q

What is maintenance rehearsal in STM?

A

Maintenance rehearsal involves repeating information out loud verbally to keep it in STM for a longer period.

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12
Q

What happens if information is not rehearsed in STM?

A

If information is not rehearsed, it decays due to the limited duration of STM.

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13
Q

What happens when STM becomes overwhelmed with information?

A

When too much information enters STM, older information is displaced by newer information due to STM’s limited capacity.

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14
Q

How is information transferred from Short-Term Memory (STM) to Long-Term Memory (LTM)?

A

Through prolonged rehearsal, information can be sent from STM to LTM.

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15
Q

What is the capacity of Long-Term Memory (LTM)?

A

LTM has an unlimited capacity.

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16
Q

What is the duration of information in Long-Term Memory (LTM)?

A

Information in LTM has a lifetime duration.

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17
Q

How is information encoded in Long-Term Memory (LTM)?

A

Information in LTM is encoded semantically, meaning it is stored based on its meaning.

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18
Q

How is information retrieved from Long-Term Memory (LTM)?

A

Information is retrieved from LTM to STM through a recall or recognition process.

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19
Q

What did Atkinson & Shiffrin (1968) propose about memory?

A

Atkinson & Shiffrin proposed the Multi-Store Model (MSM), which suggests that memory is made up of three components: sensory register (SR), short-term memory (STM), and long-term memory (LTM).

20
Q

What is the basic idea of how memory works in the Multi-Store Model (MSM)?

A

According to the model, memories are formed sequentially, and information passes from one component to the next in a linear fashion, with each store being separate and unitary.

21
Q

What are the three components of the Multi-Store Model (MSM)?

A

The three components of the MSM are sensory register (SR), short-term memory (STM), and long-term memory (LTM).

22
Q

How does information flow through the Multi-Store Model (MSM)?

A

Information passes from one component to the next in a linear fashion, with each store being separate and unitary.

23
Q

What is the primacy effect in memory?

A

The primacy effect refers to the tendency to remember the first few items in a list better than the middle items.

24
Q

Why does the primacy effect happen according to the Multi-Store Model (MSM)?

A

The primacy effect occurs because the first few items in a list are given more time to be rehearsed, which helps transfer them to Long-Term Memory (LTM).

25
How does rehearsal play a role in the primacy effect?
Rehearsal helps transfer the initial items from Short-Term Memory (STM) to Long-Term Memory (LTM), making them easier to retrieve and recall.
26
What role does Long-Term Memory (LTM) play in the primacy effect?
Once the initial items are transferred to LTM, they can be retrieved more easily, leading to better recall.
27
What is the recency effect in memory?
The recency effect refers to the tendency to remember the last few items in a list better than the middle items.
28
Why does the recency effect happen according to the Multi-Store Model (MSM)?
The recency effect happens because the most recent items are still present in Short-Term Memory (STM), which has not yet decayed or been displaced.
29
How does Short-Term Memory (STM) contribute to the recency effect?
STM holds information for only a short time, and the recent items are still available for quick recall, which contributes to the recency effect.
30
What role does the limited duration of STM play in the recency effect?
Since STM has a limited duration, the most recent items are still fresh in STM and can be retrieved easily, leading to the recency effect.
31
What does brain scan research suggest about Short-Term Memory (STM) and Long-Term Memory (LTM)?
Brain scan research provides evidence that STM and LTM are separate memory stores, as different areas of the brain are activated during different types of memory tasks.
32
Which areas of the brain are involved in STM and LTM tasks?
Beardsley (1997) found that the prefrontal cortex is active during STM tasks, while Squire (1992) found that the hippocampus is critical for LTM processes.
33
How do the findings from Beardsley (1997) and Squire (1992) support the idea of separate memory stores?
The findings suggest that STM relies on the prefrontal cortex, while LTM relies on the hippocampus, indicating that STM and LTM are supported by distinct neural systems.
34
What is the significance of brain scan research for models like the Multi-Store Model (MSM)?
Brain scan findings provide objective evidence supporting the idea that STM and LTM are separate stores, enhancing the validity of models like the MSM that propose distinct memory systems are supported by different neural structures.
35
How does the Levels of Processing (LoP) theory differ from the Multi-Store Model (MSM) in explaining memory?
The LoP theory emphasizes the depth of processing rather than the distinction between separate memory stores, suggesting that memory retention depends on how deeply information is processed.
36
What does Craik and Lockhart's (1972) Levels of Processing theory propose about memory retention?
The theory suggests that memory retention depends on the depth of processing, with information processed semantically (for meaning) being more likely to be transferred to long-term memory than information processed at a shallow level.
37
How does the Levels of Processing (LoP) theory contrast with the Multi-Store Model (MSM)?
The MSM suggests that the transfer of information from short-term memory to long-term memory relies solely on rehearsal, while LoP focuses on the idea that deeper processing leads to better retention and recall, regardless of memory store.
38
Why might the Levels of Processing (LoP) theory provide a better understanding of memory than the Multi-Store Model (MSM)?
LoP accounts for the impact of cognitive strategies, such as semantic processing, on memory retention, offering a more flexible and dynamic explanation of memory encoding and storage.
39
How does the case study of HM support the Multi-Store Model (MSM)?
The case study of HM supports MSM by demonstrating that Short-Term Memory (STM) and Long-Term Memory (LTM) are separate stores. Despite his inability to form new long-term memories, HM's STM remained intact.
40
What happened to HM after his surgery, and what did it show about STM and LTM?
After undergoing surgery to remove his hippocampus, HM could not form new long-term memories, but his Short-Term Memory (STM) was still functional, as shown by his performance on immediate digit span tests.
41
Why does HM’s case provide support for the idea of separate memory stores in MSM?
HM’s inability to form new long-term memories while still having an intact Short-Term Memory (STM) shows a clear distinction between STM and LTM, supporting the idea of separate stores in the MSM.
42
What is a limitation of using the case study of HM to support the Multi-Store Model (MSM)?
A limitation is that HM's case is based on a single individual, and his unique medication for epilepsy may have had specific effects on his brain, limiting the generalizability of the findings to the wider population.
43
What is a limitation of the Multi-Store Model (MSM) in terms of Long-Term Memory (LTM)?
The MSM presents an overly simplistic view of LTM, which is challenged by case studies like that of HM, showing that LTM consists of multiple distinct types of memory rather than being a single store.
44
How does the case of HM challenge the MSM's view of LTM?
HM was unable to form new episodic or semantic memories but could still acquire new procedural memories, such as improving on a mirror-drawing task. This suggests that LTM is not a single, unified store.
45
What does HM's case suggest about LTM and how does it challenge the MSM?
HM's case suggests that LTM consists of separate types of memory (e.g., procedural, episodic, and semantic), which challenges the MSM's reductionist approach to LTM as a single entity.
46
How does the limitation of the MSM in explaining LTM relate to the Working Memory Model (WMM)?
The Working Memory Model (WMM) may provide a better understanding of memory by accounting for multiple memory systems, unlike the MSM, which reduces memory to isolated variables.