Key Terms In Memory Flashcards
What is encoding ?
Means to put something into a code , in memory info can be coded in diff forms as visual , audio, taste & smell
What is storage ?
Once info is recorded in a code it is then sorted as a memory
What is retrieval ?
For memory to function effectively it is necessary that the stored info can be recovered , retrieval involves RRR recognition , recall & construction
What is ESR?
Encoding , storage & retrieval
What is the definition of memory ? ( Sternberg 1999)
Memory is the means by which we draw on our past experience in order to use this info in the present.
What is stm memory ?
- limited amount of processing takes place. - limited capacity (7+ /-2)& short duration (max 30 secs). -unless rehearsal is used to maintain info
What is LTM?
-a permanent store which has unlimited capacity & duration. - info is passed to LTM after rehearsal
What is ESP?
Episodic, semantic & procedural memory
What is episodic & semantic & procedural memory ?
-episodic ( memory for past events). - semantic ( memory for details or facts). - procedural( memory for how to do things)
What is sensory memory ?
To retain info for long enough to allow for the consolidation of info from minute eye movements , this allows us to integrate the info rather that see life as a series “snap shots”
Who was the therapist for “ the multi store memory model”
Atkinson & shiffrin (1968) & it’s a cognitive approach
What are the three factors that affect duration ?
-rehearsal - when is prevented info is lost from stm. -effort- sebrechts et al (1989)- showed that info is from stm in a matter of seconds if no effort is not made to retain it. -capacity- the important factor is not the number of individual items to be recalled but the number of chunks of info
What are the 3 factors that affect our ltm ?
-childhood amnesia - very young children cannot organise & integrate memories in such fashion to recall later. -learning- good initial learning facilitates later recall from LTM (Bahrick & hall 1991) - if a person does not have a good initial experience encoding & storing their recall with suffer later. - recognition- memories from the distant past are more likely to be recalled if there is some form of recognition involved. (Bahrick & hall 1975) found that recall of old classmates could be improved if provided with clues
What’s the difference with procedural & declarative memories & the difference between semantic & episodic ?
- procedural memories ( knowing how) whereas declarative memories ( is knowing that). - semantic memories ( general knowledge) whereas episodic memories is ( personal reflections)
What are the reasons for forgetting stm ?
Trace decay - info is forgotten because of the passage of time. (Peterson & Peterson 1959) found that duration of stm was approx 18 secs after which the time the memory disappeared via trace decay. Displacement- stm has limited capacity & as more Iteams are introduced into stm , it is inevitable that some items “drop out” as not enough space for them. Diversion of attention- if attention on something is not focused on info to be retained & is diverted towards something else then more likely to be forgotten. Brain damage- ( Warrington & shallices 1972) - study of KF found that his stm forgetting of audio letters & digits were greater than his forgetting of visual stimuli