Flashcards in Unit 3: Neurobiology and immunology - Memory Deck (25)
What does memory involve?
Memory involves encoding, storage and retrieval of information.
What must happen to sensory image first, to become part of the memory?
What does encoded mean?
Converted to a form that the brain can process and store.
What is storage?
The retention of information over a long period of time, can be 30seconds or a lifetime.
What is retrieval?
The recovery of stored material, involves the recall of information from the short or long- term memory.
What does all information entering the brain pass through first?
The sensory memory.
Where does information in the brain go after being passed through the sensory memory?
The short term memory/STM
Where does information in the brain go after entering the STM?
Information is then transferred to long- term memory/LTM or is discarded.
What part of the memory is very short lived only lasting around 0.5s?
The sensory memory.
What part of the memory can hold about 7 items of info for around 30seconds?
Short- term memory.
What part of the memory has an unlimited amount of information stored for up to a lifetime?
Long- term memory.
Does the STM have a limited or unlimited capacity?
How many items can the STM store at one time?
Around 7 items.
How long is info stored in the STM?
After 30 seconds what happens to info in the STM?
The information is either transferred to the LTM or is lost by displacement or decay.
How can the capacity of the STM be improved?
By chunking, rehearsal and serial position effect.
How does chunking increase the capacity of the STM?
By splitting info into smaller units (like a phone number) it is easier to remember info as smaller chunks.
How does rehearsal improve the capacity of the STM?
By repeating a piece of information over and over, it extends the amount of time that it is stored in the STM.
How does the serial position effect help to improve the capacity of the STM?
Items in the middle of a list are least well remembered compared to those at the beginning of the list as they have been rehearsed and often transferred to LTM. Items at the end of the list are remembered as they still remain in the STM.
What is the working memory?
The limited extent to process data as well as store it in the STM.
How is encoding of info into the LTM promoted?
By rehearsal, organisation and elaboration.
What does rehearsal to aid transfer of info from STM to LTM mean?
Example- when studying take regular breaks rather than studying for a long period of time, this helps to facilitate the transfer of info from STM to LTM.
What does organisation to aid transfer of info from STM to LTM mean?
If information is more organised into logical categories it is more easily transferred from the STM to the LTM.
What does elaboration to aid transfer of info from STM to LTM mean?
By making info more interesting by elaborating and analysing it more makes it more meaningful, further aiding the encoding and transfer of info from STM to LTM.