Memory Flashcards
Memory (defined)
during the stages of information processing, information must be retained or stored in some way for future use
Processes for describing memory (3)
Encoding: registering info from the environment
Storage: capacity to retain encoded information - some pieces of info are able to be converted into resting form
Retrieval: ability to locate and recall stored info - get it back out
Memory systems (2)
Declarative: conscious; actively “thinking” about the memory formed
Procedural: unconscious; automatic but usable
Declarative Memory Systems
conscious
includes semantic and episodic
semantic: hard facts (eg. capitals) and concepts (eg. family)
episodic: related to times and events (eg. Prom)
Procedural Memory Systems
unconscious
cognitive, perceptual, motor
how to do it and related to performance of skills (eg. riding a bike)
Stages of Memory (3)
sensory memory
short-term memory
long-term memory
Stages of Memory - Sensory
- takes in all information registered by sensory receptors in a short period of time, then filters out unimportant things
- each piece is registered differently (ie. visual, touch)
- duration and capacity depends on the register (0.1-1 sec; about 4 objects)
Stages of Memory - Short term (working)
- capacity to hold a small amount of information in the mind for a short period of time
- duration: about 20-30 seconds (unless rehearsing)
- capacity: seven items (+/- 2); helped by chunking
- similar for cognitive and motor information
Interactive workspace (three processing activities)
involved in short term/working memory
-integration of recently presented information with information from long-term memory; in the “decision to act” phase
three processing activities:
-solve a specific movement problem
-produce and evaluate movements (sense from movement - how did we do?)
-prepare information for storage (code in storable form)
Consolidation
- the process by which a new memory trace is gradually transferred to long-term memory
- requires structural change in synaptic connections
Stages of Memory - Long term
duration - “relatively” permanent; forgetting occurs due to retrieval problems
capacity - unlimited; but adding info on top of each other makes retrieval harder
Explicit memory tests
- recall and recognition
- literal tests
- get declarative info that you already have
Implicit memory tests
demonstrate procedural knowledge to perform the skill
Strategy to enhance consolidation: primacy-recenty
information presented first and last are remembered best
Strategy to enhance consolidation: Von Restorft
focusing on one outstanding piece