The Three MemorySystems

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The Three Memory Systems

Long-Term Memory -retained information can last from minutes to years

Consists of

Semantic Memory -our knowledge of facts about the world

Episodic Memory -recollection of events in our lives

Procedural Memory -memory for how to do things, including motor skills and habits

Short-Term Memory -retains information for limited durations

Reasons we lose information

Interference -the loss of information due to the competition of additional information

Decay -the fading of information over time

Capacity

Magic Number -is 7 plus or minus 2 piece of information

Duration -is no longer than 20 seconds

Sensory Memory -is the brief storage of perceptual information

Composed of

Iconic memory -is our visual memory

Echoic memory -is our auditory memory