Cognition Flashcards
Cognition
the process of thinking in all its forms; including memory, intelligence, creative thinking and problem solving, and language
Memory
- information processing
- memory systems
- retrieval
- retrieval failure
Information processing
involves:
- encoding
- storage
- retrieval
Encoding
- transforming sensory input from short-term to long-term memory
- requires focused attention and rehearsal
Storage
-retention of encoded info over time
Retrieval
-process of getting info out of storage
Memory systems
Involves:
- sensory memory
- short-term memory
- long-term memory
- biology of memory
Sensory memory
- registers info from senses
- holds info from the senses for a max of a few seconds
- involves: iconic memory, echoic memory, selective attention, automatic processing, parallel processing, & effortful processing
Iconic (visual) memory
-momentary sensory memory of visual stimuli
Echoic memory
-momentary sensory memory of auditory stimuli
Selective attention
- focused awareness onta a stimuli in sensory memory
- allows encoding into short-term memory (STM)
Automatic processing
- unconscious encoding of info about time, space, frequency, or previously well-learned material
- unconscious encoding does not interfere with thinking about other things
Parellel processing
-processing which involves several info streams simultaneously
Effortful processing
-encoding that requires conscious, focused attention and effort
Short-term memory (STM)
- aka working memory
- retains 7 (+/-) bits of info
- retains info for approximately 30 seconds
- integrates no info with current info/experience by: rehearsal, elaborative rehearsal, & chunking
Rehearsal
-conscious repetition of info to maintain info in STM or to encode it for storage
Elaborative rehearsal
-repetition that creates associations between the new memory and existing memories stored in LTM
Chunking
- grouping information into meaningful units
- increases the capacity of STM
Long-term memory (LTM)
- relatively permanent storage
- unlimited capacity
- subdivided into explicit memory and implicit memory
Explicit memory
- aka declarative memory
- memory of facts and experiences that one consciously knows and can verbalize
- subdivided in semantic and episodic memory
Semantic memory
-memory of general knowledge or objective facts
Episodic memory
-memory of personally experienced events
Flashbulb memory
-vivid memory of an emotionally charged event
Implicit memory
- aka non-declarative memory
- memory of skills or procedures
- learned from experience without having to refer to the experience