Memory Flashcards
An active system that receives information from the senses, puts that information into a usable form, organizes it as it stores it away, and then retrieves the information from storage
Memory
Three Processes of Memory
Encoding
Storage
Retrieval
Explain Encoding
Encoding is the set of mental operations that people perform on sensory information to convert that information into a form that is usable in the brain’s storage systems.
Ex. When people hear a sound, their ears turn the vibrations in the air into neural messages from the auditory nerve (transduction), which make it possible for the brain to interpret that sound.
Explain Storage
Hold on to the information for
some period of time.
The period of time will actually be of different lengths, depending on the system of memory being used.
: Short-term, Long-term
Explain Retrieval
Getting the information they know they have out of storage.
Model of memory that assumes the processing of information for memory storage is similar to the way a computer processes memory in a series of three stages
Information-processing Model
Model of memory in which memory processes are proposed to take place at the same time over a large network of neural connections.
Parallel Distributed Processing (PDP) Model
Model of memory that assumes information that is more “deeply processed,” or processed according to its meaning rather than just the sound or physical characteristics of the word or words, will be remembered more efficiently and for a longer period of time.
Levels-of-Processing Model
Three Models of Memory
Information Processing Model
Parallel Distributed Processing (PDP) Model
Levels-of-Processing Model
Three Memory Systems
Sensory memory
Short-term memory
Long-term memory
Explain Sensory Memory
The very first system of memory, in which raw information from the senses is held for a very brief period of time.
The point at which information enters the nervous system through the sensory systems—eyes, ears, and so on.
Information is encoded into sensory memory as neural messages in the nervous system.
Two Kinds of Sensory Memory
Iconic (Visual) Sensory System
Echoic (Auditory) Sensory System
Visual sensory memory, Only lasts for a fraction of a second. Allows enough time for the *brain stem to decide if the information is important enough to be brought into consciousness.
What is the Greek word for “image”?
Iconic memory
Icon
Information that has just entered iconic memory will be pushed out very quickly by new information, a process called _____
After only ________, old information is replaced by new.
Masking
a quarter (1/4) of a second
The ability to access a visual sensory memory over a long period of time (30 seconds or more)
Eidetic Imagery (Photographic memory)
The brief memory of something a person has heard. The “What?” phenomenon.
If you realize all this within
about ______, you will more than likely be able to “hear” an echo of the statement in your head, a kind of “instant replay.”
Echoic Sensory Memory
4 seconds
Note: Echoic memory’s capacity is limited to what can be heard at any one moment and is smaller than the capacity of iconic memory, although it lasts longer—about 2–4 seconds
May be held for up to 30 seconds and possibly longer through *maintenance rehearsal.
Short-term memory
The ability to focus on only one stimulus from among all sensory input.
It is through this that info enters our STM system.
Selective Attention
Short-term memory tends to be encoded primarily in _____ form.
Auditory (sound)
That simply means that people tend to “talk” inside their own heads.
Thought of as an active system that processes the information present within short-term memory.
Consists of 3 interrelated Systems
Working memory
Difference of short-term memory and working memory
Short-term = simple storage of info
Working memory = storage and manipulation of info
Describe Three interrelated systems of Working Memory
- Central Executive (CEO)
: controls and coordinates the other two, interpreter for the visual and auditory info contained in STM - Visuospatial (“sketchpad”)
: the sketchpad will contain images of the people and events of the particular passage being read - Phonological loop (“recorder”)
: the recorder “plays” the dialogue in the person’s head
Bits of information are combined into meaningful units, or chunks
Chunking
“654-789-3217,” for example, instead of 10 separate bits of information, there
would only be three “chunks” that read like a phone number