True or False…
x
Are the following statements true or false, according to the multi-store
model…
1.
Atkinson and Shipman developed the Multi-Store Model (MSM).
2.
Memory is made up of three separate stores.
3.
Information enters through the STM.
4.
Information needs to be rehearsed before it is transferred to LTM.
5.
The flow of information through the separate stores is sequential.
The capacity of STM is 7 (+/-2) chunks of information.
6.
x
P
x
P
P
P
x
7.
Peterson & Peterson (1959) investigated the duration of STM by giving
participants strings of digits to remember.
8.
According to Peterson & Peterson (1959) the duration of STM is 40 seconds.
Duration of LTM
Task – Identify the aim, method, results and conclusion of Bahrick et al.
(1975).
 Tested 400 US grads on their
memory for former classmates
photos, years later, by getting
them to match names to
photos.
 90% accuracy for remembering
faces & names 34 years after
graduation.
 Investigate the duration of LTM.
 Memories stored in LTM can last a
life time!
Evaluating the
Multi-Store Model
You MUST be able to state BOTH the strengths &
weaknesses of the model.
Strengths of the MSM

Case Studies – Clive Wearing, Milner

Laboratory Evidence

Brain Scans?
Case Studies
Clive Wearing
Clive Wearing

Some of the strongest evidence for a
separate STM and LTM comes from patients
who have suffered brain damage.

Loss of memory is usually selective – it
affects one type of memory but not
another.

What type of memory is impaired for Clive
Wearing?

Does this provide support for Atkinson &
Shiffrin's (1968) Multi-Store Model? Why?
Clive Wearing
The Case of Clive
Wearing, Part 1a
The Case of Clive
Wearing, Part 1b
Laboratory evidence

Duration of STM
Peterson & Peterson (1959)

Duration of LTM
Bahrick (1975)

Capacity of STM
Miller (1956)
7 (+/- 2)
Brain scans

Bran scans have shown different areas of the brain are activated when
people perform STM and LTM tasks.
Weaknesses of the MSM

Flashbulb Memories

Case Studies - KF
Flashbulb Memories

What’s the difference between the following memories?
The two memories below are written response to the question: “How
did you first hear the news of the Challenger disaster?”
Memory 1: Written in the fall of 1988, long after the event by an Emory Senior, called
RT. It was a vivid recollection for which RT rated it 5 out of 5 for her confidence in it’s
accuracy.
Memory 2: Was written by RT two and a half years earlier, just 24 hours after the
Challenger disaster….
Flashbulb Memories

REHEARSAL is central to MSM but there is lots of evidence to suggest
that you do not always need to rehearse information for it to be passed
into LTM.

Can you think of examples?


“Flashbulb Memory”
Where highly emotional, shocking events (e.g.9/11) go into LTM with
NO rehearsal.
Case Studies
Patient KF (Shallice & Warrington, 1966)

Brain injuries after a motorcycle accident.

He could recall stored information SO his LTM was intact;

But his STM was affected, he had problems remembering sounds but
he was able to remember images and faces.
So what does this suggest about our STM?
Essay Questions…

Outline and evaluate the multi-store model of memory. (12 marks).
Outline (A01)
Evaluation (A02)
Discuss:
 Sensory Memory (Capacity, Duration, Encoding)
 Short-Term Memory (Capacity, Duration, Encoding)
 Long-Term Memory (Capacity, Duration, Encoding)
2x Strengths and 2x Weaknesses:
Strengths include:
 Clive Wearing
 Laboratory Evidence
The processes involved, i.e. attention, rehearsal etc. and
how information flows through the model.
Weaknesses include:
 Flashbulb Memories
 Patient KF
 Oversimplified
Be clear on why the above are either strengths of the
MSM or limitations.
Conclusion: In terms of the strengths and weaknesses do you think the MSM is a good or bad model of memory.
Essay Questions…

Outline and evaluate the multi-store model of memory. (12 marks).

6 marks for outlining the model (A01).

A drawing is acceptable but should be accompanied by a description of
how information flows through the model and what happens to it.

Remember to describe the essential processes of attention and
rehearsal. Descriptions of the stores should focus on their capacity,
duration and encoding. To get full marks, outline must be detailed and
accurate.
Evaluation

6 marks for evaluating the model (A02).

Good advice would be to choose 4 evaluation points (2 strengths and 2
weaknesses) and describe them well making sure you explain exactly
how they either support the model or are a problem for it.
Marking…

Mark the students answer to Outline and evaluate the multi-store
model of memory (12 marks).

Highlight the A01 and A02.

Give each section a mark and justify your mark. State what went well (WWW)
and even better if (EBI)