Memory
An active system that receives information from the senses, puts that information into a usable form, and organizes it as it stores it away, and then retrieves the information from storage
Encoding
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
Storage
Holding on to information for some period of time
Retrieval
Getting information that is in storage into a form that can be used
Information-processing Model
Encoding, storage, retrieval
Parallel distributed processing model (PDP)
memory processes are proposed to take place at the same time over a large network of neural connections
Levels-of-Processing Model
Sensory memory
The very first system in memory, in which raw information from the senses is held for a very brief period of time
Iconic memory
Visual sensory memory, lasting only a fraction of a second
Eidetic imagery
The ability to access a visual memory for 30 seconds or more
Echoic memory
Auditory sensory memory, lasting only 2-4 seconds
Short-term memory (STM)
The memory system in which information is held for brief periods of time while being used
Selective attention
The ability to focus on only one stimulus from among all sensory input
Working memory
An active system that processes the information in short-term memory
Maintenance rehearsal
Practice of saying some information to be remembered over and over in one’s head in order to maintain it in short-term memory
Long-term memory
The system of memory into which all the information is placed to be kept
Elaborative rehearsal
A way of increasing the number of retrieval cues for information by connecting with something that is already well known
Nondeclarative (implicit) memory
Anterograde amnesia
Loss of memory from the point of injury or trauma forward, or the inability to form new long-term memories
Declarative (explicit) memory
Type of long-term memory containing information that is conscious and known
Semantic memory
general knowledge (language and information learned in formal education)
Episodic memory
Semantic network model
Encoding specifity
The tendency for memory of information to be improved if related information (such as surroundings of physiological state) that is available when the memory is first formed is also available when the memory is being retrieved