STM is your memory for immediate events. Usually measured in seconds and minutes. Short duration. They disappear unless rehearsed. Has a limited capacity. Coded acoustically. Sometimes referred to as working memory.
1 of 27
What is long term memory?
LTM is your memory for events which have happened in the past. This can last anywhere between 2 minutes and 100 years. Unlimited duration and capacity. Coded semantically.
2 of 27
What is coding?
Also known as encoding. This is the way information is changed so that it can be stored in the memory. Information enters the brain via senses. Stored in various ways; visual, acoustic and semantic.
3 of 27
What is capacity?
Measure of how much information can be held in the memory. Represented in bits of info, such as number of digits.
4 of 27
What is duration?
A measure of how long a memory lasts before it is no longer available.
5 of 27
What did Jacobs investigate?
Capacity of STM
6 of 27
What technique did Jacobs use?
Serial Digit Span Technique
7 of 27
What was the average span for digits in Jacobs study?
9.3 items
8 of 27
What was the average span for letters in Jacobs study?
7.3 letters
9 of 27
What 2 things did Miller find?
7 + or - 2 and chunking
10 of 27
What did Peterson & Peterson investigate?
Duration of STM
11 of 27
What were the retention intervals in Peterson & Peterson study?
3, 6, 9, 12, 15 and 18 seconds
12 of 27
What did Peterson & Peterson use in their study?
Trigrams
13 of 27
What % of Peterson & Peterson's study were correct after 3 seconds?
90%
14 of 27
What % of Peterson & Peterson's study were correct after 18 seconds?
2%
15 of 27
What did Baddeley investigate?
Coding in STM and LTM
16 of 27
How did Baddeley test LTM in his study?
Recall after 20 minutes.
17 of 27
What % of acoustically similar and dissimilar words were recalled after 20 minutes in Baddeleys study?
70%
18 of 27
In Baddeleys study in which condition were more acoustic words recalled?
Acoustically dissimilar condition
19 of 27
In Baddeleys study what % of semantically similar and dissimilar words were recalled?
Similar 55% Dissimilar 85%
20 of 27
What did Bahrick et al investigate?
Duration of LTM
21 of 27
What were the 3 conditions of Bahrick et al study?
Photo recognition, name recognition, free recall
22 of 27
How many people did Bahrick et al study?
400
23 of 27
What % accuracy did ppts have after 15 years in facial recognition?
90% (in both photo and name)
24 of 27
What % accuracy did ppts have after 48 years in name and photo recognition?
Name 80% Photo 70%
25 of 27
What % accuracy did ppts have after 15 years in free recall?
60%
26 of 27
What % accuracy did ppts have after 48 years in free recall?
30%
27 of 27
Other cards in this set
Card 2
Front
What is long term memory?
Back
LTM is your memory for events which have happened in the past. This can last anywhere between 2 minutes and 100 years. Unlimited duration and capacity. Coded semantically.
Comments
No comments have yet been made