Cognition Flashcards
Memory
A collection of complex interconnected and interacting systems, each of which serves a different purpose, operates very differently and is represented in the brain by different neural structures and mechanisms
Memory:
ENCODING
Process of converting information from its raw sensory data into a usable form so it can be represented and stored in memory
Memory:
STORAGE
Retention of information in memory over time. Referred to as memories
Memory:
RETRIEVAL
Process of locating and recovering the stored information from memory so that we are consciously aware of it. Sometimes retrieved fast e.g. name or birthday Sometimes retrieved slower e.g. information learned years ago
Multi-store Model of Memory
An explanation of how the memory process works Consists of 3 separate components - sensory memory - short-term memory (STM) - long-term memory (LTM)
Multi-store Model of Memory:
SENSORY MEMORY
- Believed that sensory data is held in raw form rather than encoded form
- Stores it long enough for each impression to slightly overlap
- If the sensory information is not attended to then no further processing occurs
- Incoming sensory information is assumed to be stored in separate sensory systems called sensory registers
> Iconic Memory
> Echoic Memory
Multi-store Model of Memory:
ICONIC MEMORY
Visual sensory register
Multi-store Model of Memory:
ECHOIC MEMORY
Auditory sensory register
Multi-store Model of Memory:
SHORT-TERM MEMORY
- STM holds all the information you are consciously aware of at any moment
- Storage capacity of 5-9 units
- Information lost through decay and displacement
Multi-store Model of Memory:
LONG-TERM MEMORY
- Stores vast amounts of information from 30 seconds to forever
- Can naturally fade
- Information moves from STM to LTM through physical changes in the neurons and neural networks
Procedural Memory
Long-term memory of actions and sills (knowing how) that have been learned previously
e.g. brushing your teeth, tying shoelaces, driving
Declarative Memory
Long-term memory of specific facts and events most of which can be stated or declared. Stores memory of ‘knowing that’
e.g. recalling an event, knowing when, knowing where