Memory Flashcards
Memory is an active system that receives _______________ _______________ and puts that it into a usable form, ________________ it as it stores it away, and then ____________ it from storage when necessary.
1) Sensory information
2) Organises
3) Retrieves
What are the 3 processes involved in memory?
Encoding, storage and retrieval.
Explain the encoding process of memory.
Set of mental operations that people perform on sensory information to convert information into a form that is usable in the brain’s storage systems.
Explain the storage process of memory and what is the period of time dependent on.
Holding onto information for a certain period of time.
The period of time is dependent on the system of memory used.
Explain the retrieval process of memory.
Retrieving information that is in storage into a form that can be used.
What are the 3 different models of memories used to explain how memory works?
Information-processing model, parallel distributed processing model and levels-of-processing model.
Explain the information-processing model of memory.
Assumes the processing of information for memory storage is similar to the way a computer processes memory in a series of three stages (encoding, storage and retrieval).
Explain the parallel distributed processing model of memory.
Model of memory in which memory processes are proposed to take place at the same time over a large network of neural connections.
Simultaneous processing allows people to retrieve many different aspects of a memory all at once, facilitating much faster reactions and decisions.
Explain the levels-of-processing model of memory.
Assumes information that is more “deeply processed”, or processed according to its meaning rather than just sound or physical characteristics of the word or word would be remembered more efficiently and for a longer period of time.
What are the 3 types of memory systems proposed in the information-processing model of memory?
Sensory memory, short-term memory and long-term memory.
What are the 5 types of sensory memory?
Iconic (visual), echoic (auditory), tactile (touch), gustatory (taste) and olfactory (smell).
What is the process of masking in the iconic sensory system?
It is when iconic memory is pushed out very quickly by new information.
Explain the sensory memory system.
Information is encoded into sensory memory as neural messages in the nervous system.
As long as those neural messages are travelling through the system, people have a “memory” for that information that can be accessed if needed.
What is short-term memory?
Short-term memory is the second memory system in which information is held for brief periods of time while being used, usually lasting for about 30 seconds or possibly longer through maintenance rehearsal.
What is sensory memory?
Sensory memory is the first system of memory, in which raw information from the senses is held for a very brief period of time.
What is selective attention?
The ability to focus on only one stimulus from among all sensory input.
Only stimulus that is important enough will make it past the bottleneck to be consciously analysed for meaning in short-term memory.
What is inattentional blindness?
A failure to notice changes occurring in one’s visual field, apparently caused by narrowing the focus of one’s attention.
What is change blindness?
Inability to detect salient changes in stimulus (even when paying attention).
Explain what is working memory.
An active system that processes the information in short-term memory.
What are the 3 interrelated systems in working memory?
Central executive, visuospatial sketchpad, and auditory action recorder/phonological loop.
What is the central executive in working memory and what are its functions?
Controls and coordinates the other 2 systems (visuospatial sketchpad & auditory action recorder/phonological loop).
Interpreter for both visual and auditory information.
What is the visuospatial sketchpad in working memory?
Ability to hold visual and spatial information.
How is the visuospatial sketchpad in working memory typically measured?
Using a spatial span test, where a series of blocks light up and subject are asked to recall the lit blocks in order (forward span) or in reverse order (backwards span).
What is the auditory action recorder/phonological loop in working memory?
Speech and sound-related component which holds verbal and auditory information.