Memory pt 2 Flashcards
What is memory?
Memory is not passive storage it is the behaviour of neurons and is always active.
What is the capacity and duration of sensory memory?
Few seconds and large
What is the capacity and duration of short term memory?
Holds 7+-2 items for about 15-20 seconds.
What is the capacity and duration of long term memory?
Can hold large amounts of information for up to a life time.
What is the persistence of vision?
Sensory memory’s retention of light, e.g. trail of light from moving sparklers.
What is memory decay?
Vanishing of memory trace due to passage of time and exposure to more information.
What is proactive interference?
Previous knowledge interacts and decays the new information.
What is retroactive interference?
New knowledge interacts and decays the previous knowledge.
What is the encoding for STM?
Acoustic
What is the encoding for LTM?
Semantic
What is the change detection pardigm?
STM test that prevents chunking by semantic units.
What was the study into the change detection paradigm?
Participants showed a variety of items varying in complexity, e.g. coloured blocks random shapes and Chinese symbols, the more complex the shape the harder it was to remember, without chunking average was 4.
What is working memory?
Limited capacity system for temporarily storing and manipulating information fro complex tasks such as comprehension.
What is the structure of working memory?
It is bound by the central executive with slave stores of the phonological loop and the visuospatial sketchpad, also including an episodic buffer.
