EDU220: Final Exam Flashcards
Cognitive science
The interdisciplinary study of thinking, language, intelligence, knowledge creation and the brain
Cognition=operation of a very complex but coordinated system of diff components of memory interacting quickly and at the same time
Cognitive vs behavioral views of assumptions of what is learned
Cog view: knowledge and strategies are learned, and changes in these areas make changes in behavior possible
Behavioral view: new behaviors themselves are learned
Behavioral vs cog view of reinforcement
Behavioral view: reinforcement strengthens responses
Cog view: reinforcement= source of info about what is likely to happen if behaviors are repeated or changed
Cog view of learning
Extending/transforming understanding that we already have (not just writing associations on blank slates of our brains)
Actively make decisions to pursue learning goals
Construction of knowledge stressed (not acquisition)
Cognitive view of learning
A general approach that views learning as an active mental process of acquiring, remembering, and using knowledge
Generally agreed upon
Learning=active mental process
Goals of behavioral researchers vs cog psychologists
Behavioral: Identify general laws of learning that apply to all higher organisms (no matter what age, intelligence, etc)
Cog: wide range of learning situations; focus on individual and developmental riffs in cognition (no single cog model created that explains entire field for this reason)
Importance of knowledge in cog approach
Most important elements in learning process=how learner carries previous knowledge into new situations
Frame/base of knowledge=what we already know
Knowledge determines what we will pay attention to, learn, forget, etc
Domain-specific knowledge vs general knowledge
Cog perspective
Domain specific knowledge=specific to a certain task or subject
General knowledge=general cog skills that apply to diff situations and subjects
Need both to be successful**
Cog view of memory; old model
Most common theories of memory=info processing theories
Early info processing views= brain is like a computer; but only works as a metaphor for human mental activity
Old model: input flows into sense-specific streams, gets encoded, moved to short term memory which holds it for a short time/mixes it with info from long term memory and with effort, moves info into long term memory storage
Short term memory=generates responses and output
Helpful model but incomplete
-couldn’t explain how how knowledge/memories outside your awareness could influence learning
-how diff cog processes can run at the same time
Recent cog science info processing model
Keeps some parts of old model
Emphasizes role of working memory, attention, and interaction among elements of the system
Steps:
1- info encoded in sensory memory (perception and attention decide what will stay in working memory)
2- in working memory->executive processes control flow of info and mix new info with old knowledge from long term memory (becomes part of working memory when activated)
3- implicit memories are formed without conscious effort
4- long term memory, working memory and sensory memory work together to guide perception, interpret info, construct knowledge, solve problems, etc
5- attention has a role in all three memory processes
Sensory memory
Initial processing that transforms incoming stimuli from the enviro into info so we can make sense of them Other names: Sensory buffer Iconic memory (images) Echoic memory (sounds)
Capacity, duration and contents of sensory memory
Capacity: very large
Duration: lasts less than 3 seconds (and a bit after the stimulus is gone)
Contents: takes in more info than we can handle at once
Attention
Focus on a stimulus Affected by: -the 3 memory processes -what we already know -what we need to know -what else is happening -type and complexity of task -resources brought to situation -ability to control/focus your attention
Automaticity
Result of learning to perform a behaviour or thinking process so thoroughly that the performance is automatic and does not require effort; sometimes refers to excitement or stress
Not black and white; works on a continuum
Never completely automatic
Two types of multitasking
Sequential multitasking: focusing on only one task at a time but switching back and forth between them
Simultaneous multitasking: overlapping focus on several things at a time
Three types of tasks (attention)
Resource-limited tasks: performance on these tasks will get better if we use more resources (don’t multitask)
Data-limited tasks: successful processing depends on amount and quality of available data; ex: if you can’t hear the lecture or too many unfamiliar vocab words used=attention won’t help
Automated task: doesn’t require much attention
Working memory
Where new info is held temporarily and combined with knowledge from long term memory to solve problems or understand a lecture etc
Limited capacity
Some psychologists believe it’s synonymous with consciousness
Short-term memory
Component of memory system that holds info for about 15-20 seconds
5 to 9 item limit (can be overcome with strategies like grouping or chunking)
Baddley’s 4 components of working memory:
1- central executive (controls attention/ other mental resources aka worker of working memory)
2- visuospatial sketch pad (visual and spatial info)
3- phonological loop (verbal and sound info)
4- episodic buffer (integrates info from other three together to create representations)
Central executive
Part of working memory that is responsible for monitoring and directing attention and other mental resources
Phonological loop
Part of working memory
Speech and sound related system
Holds and rehearses/refreshes words and sounds in short term memory for about 1.5-2 seconds
Visuospatial sketch pad
Part of working memory
Holding system for visual and spatial info
Episodic buffer
Process that brings together and integrates info from the phonological loop, visuospatial sketch pad, and long term memory under the supervision of the central executive
Duration and contents of working memory
Duration: 5-20 seconds
Contents: sounds and images that resemble representations in sensory memory
Info structured abstractly based on meaning
Cognitive load
Volume of resources necessary to complete a task
Intrinsic vs extraneous vs Germane cognitive load
Intrinsic: resources required by task itself, regardless of other stimuli; unavoidable, brain can only process 2-4 bits of new info at a time
Extraneous: resources required to process stimuli not relevant to the task (ex: figuring out badly organized textbook, getting your roommate to stop interrupting you etc); unhelpful
Germane: deep processing of info related to task including application of prior knowledge to a new task or problem; most valuable as its directly related to high quality learning
Two types of rehearsal that helps keep information activated in memory
1- maintenance rehearsal: repeating info in phonological loop or refreshing info in visuospatial sketch pad; repeating info to yourself to keep info in working memory
2- elaborating rehearsal: connecting info you’re trying to remember with something you already know (knowledge from long term memory)
Chunking
Grouping individual bits of data into meaningful larger units
Two ways that info is lost from working memory
Interference: processing new info gets confused with old info
Decay: weakening and fading of memory with the passage of time
Three basic aspects of memory
1- memory span or amount of info that can held in working/short term memory 2- memory processing efficiency 3- speed of processing **act together and influence each other **speed gets faster as kids get older
Why do young kids have slower memory processing?
Fewer strategies and less knowledge
As they get older, they develop more strategies
Age 5/6: rehearsal
Age 6: organizational strategies
Age 9/10: use these strategies spontaneously
Later childhood: elaboration
10-11: adult like memories
Growth in working memory is related to…
Reading abilities and reading comprehension Academic achievement Math computation Solving complex word problems Scores on iq tests
Problems with working memory are associated with:
-reading disabilities
Long term memory
Holds well-learned info Capacity: unlimited Duration: permanent Access: required time and effort Contents: declarative, procedural and self regulatory
Three contents of long term memory
1- declarative knowledge: verbal info and facts; “knowing that” something is the case
2- procedural knowledge: knowledge that is shown when we perform a task; “knowing how”
3- self regulatory knowledge: knowing how to manage your learning, or knowing how/when to use your declarative and procedural knowledge (aka conditional knowledge)
Two categories of long term memory
Explicit memory: knowledge that can be recalled and consciously considered
Implicit: not conscious of, influences behaviour and thought without our awareness
Two types of explicit memories
Semantic memory: meaning (also declarative memory)
Episodic: based on sequence of events
Propositional network (explicit memory)
Set of interconnected concepts and relationships in which long term knowledge is held
3 subdivisions of implicit memory
1- classical conditioning effects (conditioned emotional reactions)
2- procedural memory (motor skills, habits, tacit rules)
3- priming (implicit activation of concepts in long term memory)
Images
Representations based on physical attributes of info
Stored as pictures or propositions converted to pictures in working memory?
Dual coding theory
Suggests that info is stored in long term memory as either visual images or verbal units, or both
This info=easiest to learn
Concept
Category used to group similar objects, events, ideas or people
Defining attributes
Qualities that connect members of a group to a certain concept
First believed to be what we used to make concepts in our heads
Challenged because not every concept includes things with same attributes
Prototype
Best example or best representative of a category
Current theory of how we create concepts
Exemplar
Actual memory of a specific object
Theory-based
An explanation for concept formation that suggests our classifications are based on ideas about the world that we create to make sense of things
Simplicity principle
Final aspect of concept formation
When humans are confronted with examples, they induce the simplest category or rule that would cover all the examples
Schemas
Complex knowledge
Basic structures for organizing info and concepts
Organize vast amounts of info
Story grammar
A type of schema that helps students remember stories and understand them
Includes a specific organizational structure
Episodic memory
Long term memory for info tied to a particular time and place, especially memory of events in a person’s life
Flashbulb memories
How are flashbulb memories created?
Under stress, more glucose energy goes to fuel brain activity while stress induced hormones signal the brain that something important is happening
Three kinds of implicit/out of awareness memories
1- classical conditioning: some implicit memories can cause you to feel anxious as you take a test or make your heart rate increase when you hear a siren
2- procedural memory: long term memory for how to do things (productions=contents of procedural memory; rules about what actions to take given certain situations; scripts=schema or expected plan for sequence of steps in a common event like ordering pizza)
3-priming: activating a concept in memory or the spread of activation from one concept to another
Elaboration
Memory strategy
Adding meaning to new info by connecting with already existing knowledge
Change existing knowledge in the process
Form of rehearsal so easier to remember later
Builds extra links to existing knowledge
Organization
Memory strategy
Material that’s well-organized=easier to learn and to remember than random bits and pieces
Ex: chunking
Mayer’s cognitive theory of multimedia learning (three ideas)
1- dual coding: visual and verbal info=processed in diff systems
2- limited capacity: working memory for verbal and visual material is severely limited; cognitive load has to be managed
3- generative learning: meaningful learning happens when students focus on relevant info and generate/build connections
How can one build complex understandings that integrate info from visual and verbal sources, given the limitations of working memory?
Make sure the info is available at the same time or in focused small bits
Context
Memory strategy
Aspects of physical/emotional context are learned along with other info
Levels of processing theory
Alternative to short/long-term memory models
Recall of info is based on how deeply it is processed
Spreading activation
Retrieval of pieces of info based on their relatedness to one another
Remembering one bit of info activates recall of associated info
Retrieval
Process of searching for and finding info in long term memory
Reconstruction
Recreating info by using memories, expectations, logic and existing knowledge
Mnemonics
Systematic procedures for improving memory; make learning meaningful
Loci method
Technique of associating items that you want to remember with specific places (mnemonics)
Chain mnemonics
Memory strategies that associate one element in a series with the next element and so on
Keyword method
System of associating new words or concepts with similar-sounding cue words and images
Recode
Relate
Retrieve
Rote memorization
Remembering info by repetition without necessarily understanding the meaning of the info
Serial-position effect
The tendency to remember the beginning and the end, but not the middle of the list
Part learning
Breaking a list of items into shorter lists
Helps prevent serial-position effect
Distributed practice vs massed practice
Practice over a period of time with rest intervals=distributed practice
Practice for a single extended period=mass practice
Automated basic skills
Skills that are applied without conscious thought
Three stages in the development of an automated basic skill
1- cognitive stage: when first learning, we rely on declarative knowledge and general problem solving strategies to accomplish our goal; cognitive load on working memory=heavy, learn by trial and error
2- associative stage: individual steps of a procedure are chunked into larger units
3- autonomous stage: whole procedure is accomplished without much attention
How can teachers help students pass through the three stages to create automated basic skills?
Prerequisite knowledge
Practice with feedback
Productions
Contents of procedural memory; rules about what actions to take depending on the specific conditions
Domain specific strategies
Consciously applied skills to reach goals in a particular subject or problem
Requires many opportunities for practices
Executive control processes
Processes such as selective attention, rehearsal, elaboration, and organization that influence encoding, storage, and retrieval of info in memory
Meta cognition
Knowledge about our own thinking processes
Meta cognition includes three types of knowledge
1- declarative knowledge
2- procedural knowledge
3- self regulatory knowledge
Three essential skills of meta cognition
Planning
Monitoring
Evaluating
KWL strategy for meta cognition
K: what do I already KNOW about this subject?
W: what do I WANT to know?
L: at the end of the reading, what have I LEARNED?
Learning strategies
A special kind of procedural knowledge
Knowing HOW to approach learning tasks
Can be cognitive, meta cognitive or behavioural
How to underline or highlight effectively
Be selective and limit how much is highlighted (one sentence per paragraph)
Actively put info into your own words as you take notes
Note connections
Draw diagrams
Look for organizational patterns in readings
Concept map
Drawing that charts the relationships among ideas
Cmaps
Tools for concept mapping developed by the institute for human and machine cognition that are connected to many knowledge maps and other resources on the Internet
READS strategy for reading comprehension
R: reviews headings E: examine bold words A: ask what you expect to learn D: do it! Read S: summarize in your own words