1. Memory Distinguishing the three stores Capacity and duration
First Hour - What Are the Various Characteristics of the Stages of Memory?
The Atkinson-Shiffrin Model of Memory
Sensory Memory
Short Term or “Working Memory”
Long Term Memory
Distinguishing the three stores
Capacity and duration

2. The Atkinson-Shiffrin or “Three-Stores” Model of Memory
Sensory
Memory
Working
LTM
Input

3. Three-Stores Model of Memory
Maintenance
Rehearsal
Attention
Encoding
Sensory
Memory
Working
Memory
LTM
Sensory
Input
.5” - 3”
Duration
Indefinite
Duration
Capacity
10” - 15”
Duration
7 + or – 2
Capacity
75 – 100%
Capacity
Retrieval

4. Interval before recall (sec.)
Peterson & Peterson study
100 80 60
% items recalled 40 20 3 6 9 12 15 18
Interval before recall (sec.)

5. flashed: Question: Yes No
Word
flashed: Question: Yes No
1. judge Is the word in capital
letters? __ __
2. DREAM Does the word rhyme
with “cream”? __ __
3. bread Would the word fit in
this sentence: “The
boy used the _____
to make a sandwich.”? __ __
etc.

6. Depth of Processing