Chapter 7 Flashcards
Define memory
The retention of information or experience over time as the result of three key processes: encoding, storage, and retrieval.
How does memory work?
Take in information (encoding)
Store it or represent it in some manner (storage)
Retrieve it for a later purposes (retrieval)
Define divided attention and sustained attention
Divided: Concentrating on more than one activity at the same time
Sustained: The ability to maintain attention to a selected stimulus for a prolonged period of time.
Define levels of processing
A continuum of memory processing from shallow to intermediate to deep, with deeper processing producing better memory.
What happens at each level of processing?
Shallow: Physical and perceptual features are analyzed (lines and angles make up the appearance of a car)
Intermediate: Stimulus is recognized and labelled (Object recognized as a car)
Deep: Meaningful and symbolic characteristics are associated with the car
Define elaboration
The formation of a number of different connections around a stimulus at any given level of memory encoding.
Dual code hypothesis
Memory for pictures is better than memory for words
Atkinson–Shiffrin theory
Theory stating that memory storage involves three separate systems: sensory memory, short-term memory, and long-term memory
What is sensory memory
Memory system that involves holding information from the world in its original sensory form for only an instant, not much longer than the brief time it is exposed to the visual, auditory, and other senses.
Echoic memory
Auditory sensory memory
Iconic memory
Visual sensory memory
short-term memory
Limited-capacity memory system in which information is usually retained for only as long as 30 seconds unless the individual uses strategies to retain it longer
Two ways to improve short term memory
Chunking: Grouping or “packing” information into higher order units that can be remembered as single units
Rehearsal: Conscious repetition of information
working memory
A combination of components, including short-term memory and attention, that allow individuals to hold information temporarily as they perform cognitive tasks; a kind of mental workbench on which the brain manipulates and assembles information to guide understanding, decision making, and problem solving
Three components of Baddeley’s model
Phonological loop: Specialized to store speech based information about the sounds of language - contains two separate components (Acoustic cord and rehearsal)
Visuo-spatial sketchpad: Stores visual and spatial information including visual imagery
Central executive: Integrates information not only from the other 2 components but from long term memory
Define long term memory
A relatively permanent type of memory that stores huge amounts of information for a long time.
What is long term memory divided into?
Explicit memory and implicit memory
What is explicit memory (declarative memory) and what is it divided into?
The conscious recollection of information, such as specific facts or events and, at least in humans, information that can be verbally communicated.
Divided into Episodic and semantic memory