Memory Flashcards
What is the Role of the central executive in the WMM?
Coordinates the activities of the visuo spatial sketchpad and phonological loop
Attention and Coordination
What is the role of the visuospatial sketchpad in the WMM?
Processes visual and spatial information
What is the role of the phonological loop in the WMM?
Processes written and spoken information
What is the role of the episodic buffer in WMM?
brings together the activities of the 3 subsystems to create a single memory
KF
Motorcycle accident
Damaged LTM
Recall verbal but not visual information
Shepard & Fang
Cube net
One group asked if arrows would meet
Other group allowed to fold
Took the same amount of time
Visuospatial Sketchpad
Gathercole & Baddeley
Track a moving live with a pointer
- verbal task
- angle of ‘F’
performed better on the verbal task as they were using 2 seperate stores
What are the 2 types of sensory memory?
Iconic - visual information
Echoic - auditory information
What is the Capacity and duration of sensory Memory?
Ulimited Capacity
Duration - a few milliseconds
What is the capacity and duration of STM?
Capacity - 5-9
Duration - 18 seconds
What is the capacity and duration of LTM?
Capacity - unlimited
Duration - infinate
HM
Eplilepsy
Hippocampus removed
could no longer encode from STM to LTM
memory assessed in 1955, he though the year was 1953 and he was 27 (actually 31)
Peterson - Memory
Meaningless trigrams
counting backwards in 3s/4s before recalling
STM - 18s
importance of rehearsal
What are the advantages of the MSM?
good understanding of structure and processes of STM
allows researchers to expand on the model
- increases validity
- provides evidence
Types of LTM
Procedural
- how to do things
Semantic
- information about the world
Episodic
- life experiences
What are the 2 explanations of forgetting?
Retroactive interference
- recent learning interfering with past learning
Proactive Interference
- past learning interfering with recent learning
2 types of retrieval failure
Environmental cues
Mental cues
Deep Sea diver study
words learnt underwater were better recalled underwater and vice versa
Rugby Players - recalling names of teams played over season
Time interval was the same for all players but the number of intervening games varied due to missed games
Those who played the most games should forget more due to interference
Johnson & Scott - EWT
Pen + Knife
A - discussion
- man walked out covered in grease
- holding pen
- 49%
B - heated discussion
- man walked out covered in blood
- holding knife
- 33%
Loftus - Slideshows
18 x 35mm slides
1.5 seconds
80 students
A - cheque handed to cashier
- 38.9%
B - gun pulled out
- 11.1%
Yerkes-Dodsons Law
Normal Distribution of the effect of anxiety on EWT
Yuille + Cutshall - Shooting in Canada - midleading Qs
13 people 4 months post shooting
misleading Qs - ‘a’ vs ‘the’
misleading information showed no effect
Christianson & Hubinette - bank robberies
110 witnesses of 22 real-life bank robberies
interviewed 15 months later
uncontrolled study - post-event discusiion
What are the characteristics of the cognitive interview?
context reinstatement
recall from a changed perspective
reporting everything
emotional details
What are the strengths of the cognitive interview?
provides more detail useful for a testimony
What are the weaknesses of the cognitive interview
more incorrect information
more time consuming
Who developed the cognitive interview?
Geiselman
Type of coding in Sensory Memory
Sense-specific
Type of coding in STM
Acoustic
Type of coding in LTM
Semantic
Who developed the MSS?
Atkinson + Shiffrin
What belief is the MSS based on?
We process memories in the same way which a computer processes information
Sensory register: duration, capacity, coding
D - 0.5s
Ca - unlimited
Co - sense-specific
STM: Duration, Capacity, Coding
D - 20s
Ca - 7+/-2
Co - acoustic
LTM: Duration, Capacity, Coding
D- unlimited
Ca - Unlimited
Co - semantic
LTM: Duration, Capacity, Coding
D - unlimited
Ca - unlimited
Co - semantic
The stroop effect
A colour will be named more quickly if written as a word than shown as the colour
Limitation of MSM
More than one type of STM is likely
Rehearsal can be elaborative
Unlikely memory is linear
2 Types of LTM
Explicit - memories we consciously try to recall
Implicit - not part of our conscience, formed from behaviours
Types of explicit memory
Semantic - language and knowledge about language
Episodic - events we have experienced
Type of Implicit memory
Procedural - knowledge of how to do behaviours
Support for MSM - Glanzar + Kunitz
Ppts given list of common words
Recalled more words from beginning (primacy effect) and end (serial position effect)
Words in the middle were forgotten due to limited capacity of STM
Support for MSM - HM
Surgery to relieve epilepsy which destroyed his hippocampus
Procedural memory still in tact but could not transfer from STM –> LTM
Anterograde amnesia