Memory

1
Memory

• Martha Arterberry
• Roberts 340
• marterbe_at_colby.edu

2
Memory

• Capacity to store and retrieve information
• Important foundation for cognitive processes

3
Modal View of Memory
Sensory Register
Short-Term Working Memory
Long Term Memory (LTM)
4
Sensory Memory
Capacity - large Retention short (½ sec) Ex
Iconic memory
Sensory Register
5
Example of Sensory Register Iconic Memory
Search for the letter c
6
Short-Term and Working Memory
Sensory Register
Short-Term Working Memory
Attention
7
The Phenomena of ATTENTION
Goal Directed vs. Stimulus Driven
Does the number of white T-shirt players change?
Any Gorillas???????
8
Short-Term Memory
Capacity 7 /- 2 items Retention
short Strategies
Sensory Register
Short-Term Working Memory
Attention
9
Working Memory
Three components Phonological loop Visuospatial
sketch pad Central executive
Sensory Register
Short-Term Working Memory
Attention
10
Long Term Memory
Memory Types Autobiographical Declarative Procedu
ral
Sensory Register
Short-Term Working Memory
Long Term Memory
Encoding
Attention
Retrieval
11
Memory Test after Roediger and McDermitt (1995)

• Pen and pencils down
• Listen to list of words and try to remember them

12
Recall Results

• Correct your answers overall number correct
• How many words did you recall in the
• first third of the list?
• The middle third?
• The last third?

Middle Third Wake Snooze Blanket Doze Slumber
Last Third Snore Nap Peace Yawn Drowsy
First Third Bed Rest Awake Tired Dream
13
Think-Pair-Share

• Create a graph of your and your partners
  performance.

14
Think-Pair-Share

• Does it look somewhat like this graph?
• Why did you get this performance? (Or why did I
  expect it?)
• Did you recall words not on the list?

15
Serial Position Curve of Memory
16
Interaction of STM and LTM

• Glanzer Cunitz (1966)
• Primacy effect recall from LTM
• Conditions
• Varied presentation rate read same word 1, 2,
  or 3 times.
• Varied timing read word once but waited 1, 2,
  or 3 sec before saying next word.

17
Effect of Presentation Number
18
Effect of Presentation Spacing
19
Interaction of STM and LTM

• Glanzer Cunitz (1966)
• Recency effect recall from STM
• Varied delay before recall
• 0 sec delay immediate recall
• 10 sec delay
• 30 sec delay

20
Effect of Delay
21
Primacy Recency Effect
Sensory Register
Short Term Working Memory
Long Term Memory
Hypothesis Recency
Hypothesis Primacy