AP Psychology Study Material: Murtagh's Myers 4th Edition, Unit 2 - Cognition (Modules 2.3-2.7) on Memory and Forgetting

memory

the persistence of learning over time through the storage and retrieval of information

recall

A measure of memory in which the person must retrieve information learned earlier, as on a fill-in-the-blank test.

recognition

a measure of memory in which the person need only identify items previously learned, as on a multiple-choice test

relearning

a measure of memory that assesses the amount of time saved when learning material for a second time

Encoding

the processing of information into the memory system—for example, by extracting meaning.

storage

the process of retaining encoded information over time

Retrieval

the process of getting information out of memory storage

sensory memory

the immediate, very brief recording of sensory information in the memory system

short-term memory

activated memory that holds a few items briefly, such as the seven digits of a phone number while dialing, before the information is stored or forgotten

long-term memory

the relatively permanent and limitless storehouse of the memory system. Includes knowledge, skills, and experiences.

working memory

a newer understanding of short-term memory that focuses on conscious, active processing of incoming auditory and visual-spatial information, and of information retrieved from long-term memory

central executive

part of Alan Baddeley's model of working memory that oversees the visuospatial sketchpad, phonological loop, and episodic buffer. Responsible for shifting and dividing attention

phonological loop

part of Alan Baddely's model of working memory that allows for the repetition of verbal information to aid with encoding it into memory

visuospatial sketchpad

a memory component that briefly holds information about object's appearance and location in space,

maintenance rehearsal

A system for remembering involving repeating information to oneself without attempting to find meaning in it

elaborative rehearsal

a method of transferring information from STM into LTM by making that information meaningful in some way

neurogenesis

the formation of new neurons

long-term potentiation (LTP)

an increase in a synapse's firing potential after brief, rapid stimulation. Believed to be a neural basis for learning and memory.

explicit memory

retention of facts and experiences that one can consciously know and "declare"

effortful processing

encoding that requires attention and conscious effort

automatic processing

unconscious encoding of incidental information, such as space, time, and frequency, and of well-learned information, such as word meanings

implicit memory

retention of learned skills or classically conditioned associations independent of conscious recollection

iconic memory

a momentary sensory memory of visual stimuli; a photographic or picture-image memory lasting no more than a few tenths of a second

echoic memory

a momentary sensory memory of auditory stimuli; if attention is elsewhere, sounds and words can still be recalled within 3 or 4 seconds

Chunking

organizing items into familiar, manageable units; often occurs automatically

mnemonics

memory aids, especially those techniques that use vivid imagery and organizational devices

spacing effect

the tendency for distributed study or practice to yield better long-term retention than is achieved through massed study or practice

testing effect

enhanced memory after retrieving, rather than simply rereading, information

shallow processing

encoding on a basic level based on the structure or appearance of words

deep processing

encoding semantically, based on the meaning of the words; tends to yield the best retention

semantic memory

explicit memory of facts and general knowledge; one of our two conscious memory systems

episodic memory

explicit memory of personally experienced events; one of our two conscious memory systems

hippocampus

A neural center located in the limbic system that helps process explicit memories for storage.

memory consolidation

the neural storage of a long-term memory

Amygdala

A limbic system structure involved in memory and emotion, particularly fear and aggression.

flashbulb memory

A clear and vivid long-term memory of an especially meaningful and emotional event.

Priming

the activation, often unconsciously, of certain associations, thus predisposing one's perception, memory, or response

encoding specificity principle

the idea that cues and contexts specific to a particular memory will be most effective in helping us recall it

mood-congruent memory

the tendency to recall experiences that are consistent with one's current good or bad mood

serial position effect

our tendency to recall best the last (a recency effect) and first items (a primacy effect) in a list

Interleaving

a retrieval practice strategy that involves mixing the study of different topics.

Forgetting

the inability to retrieve memory from long-term storage

anterograde amnesia

an inability to form new memories

retrograde amnesia

an inability to retrieve information from one's past

proactive interference

the forward-acting disruptive effect of older learning on the recall of new information

retroactive interference

the backward-acting disruptive effect of new learning on the recall of old information

Repression

in psychoanalytic theory, the basic defense mechanism that banishes from consciousness anxiety-arousing thoughts, feelings, and memories

reconsolidation

a process in which previously stored memories, when retrieved, are potentially altered before being stored again

misinformation effect

occurs when misleading information has distorted one's memory of an event

source amnesia

faulty memory for how, when, or where information was learned or imagined

deja vu

that eerie sense that "I've experienced this before." Cues from the current situation may subconsciously trigger retrieval of an earlier experience.

Hermann Ebbinghaus

the first person to study memory scientifically and systematically; used nonsense syllables and recorded how many times he had to study a list to remember it well

Richard Atkinson and Richard Shiffrin

proposed the classic three-stage processing model of memory (sensory memory to short-term memory to long-term memory)

Eric Kandel

Studied the sea slug Aplysia and posited that learning and memory are evidenced by changes in synapses and neural pathways.

George Miller

psychologist; found that short term memory has the capacity of about 7 (plus or minus 2) items

Elizabeth Loftus

Her research on memory construction and the misinformation effect created doubts about the accuracy of eye-witness testimony