3 Flashcards
(47 cards)
a)Age related changes in attention:
information processing model
cognitive processing is related to computer processing:information enters the system and is transformed, coded, and stored for later retrieval and use
Information processing model
1st step: incoming information (any information from sight,sound,touch,smell,or taste)
2nd step: sensory memory :information is detected it is perceived by brain
held in sensory memory for a short period of time (limited information stored very briefly)
~Unattended information is lost
3rd step: attention
4th step: when we attend to that information it has possibility to enter short term memory
Information in short term memory may be rehearsed
It can be unconsciously rehearsed if you are constantly reminded of it or it can be conscious
Unrehearsed information is lost
Rehearsal leads to consolidation and encodes the information from short term memory into long term memory
diffeent types of attention
sustained attention
selective attention
divided attention
Sustained attention
Mackworth clock task: find when the red dot has been skipped
with age:reduced/preserved/improved performance (not much changes bc the task is easy)
Selective attention
Stroop task (name the color of the word)
with age:Reduced performance(More difficulty with removing distracting information with aging)
Divided attention
Dual task-paradigm(doing two tasks at once)
with age:Reduced performance
Short term memory as a function of age:
primary memory:Passive store that holds information in the form in which it was received
working memory:Active store that allows for the processing and manipulation of information
primary memory
Preserved performance with age
ie:Repeating a string of digits in the order in which they were presented
working memory
Reduced performance with age(capacity to hold and manipulate info declines)
ie:Repeating a string of digits in reverse order, subtracting 2 from each digit
Long term memory as function of age
procedural memory
semantic memory
episodic memory
prospective memory
Procedural memory
Implicit store that allows for the acquisition and performance of skills and action
Preserved performance
Semantic memory
Explicit store that contains general knowledge
preserved/improved performance
Episodic memory
Explicit store that contains experiences and events that are linked to a specific time and place
Reduced performance
Prospective memory
Explicit store that contains intentions for the future
reduced/preserved/improved performance
dual component model of intelligence
distinguishes between fluid intelligence and crystallized intelligence
1)fluid intelligence:
“mechanics” of intelligence
Biologically determined
crystallized intelligence:
“pragmatics” of intelligence
Culturally determined
Fluid intelligence (“mechanics” of intelligence/”hardware”)
Mental operations related to deliberate and controlled problem solving; biologically determined
example:What comes next in the series d f i m r x
Reduced performance with age
Crystallized intelligence (pragmatics of intelligence/”software”
Breadth, depth and application of language, information, concepts, and conventions acquired through experience, education, acculturation; includes language based and procedural knowledge; culturally determined
example:why do people put money in banks
preserved/improved performance
Developmental trajectories for fluid and crystallized intelligence
Increase in fluid intelligence from childhood to 30, after 30 fluid intelligence declines and continues to decline across adulthood
Increase in crystallized intelligence from childhood to 30, shows slight increase after 30
Cattel-horn-carroll (CHC) model of intelligence
Examined existing data on cognitive abilities, looked at cognitive abilities across 460 data sets
cattel horn carroll :10 factor model of analysis
gf)fluid reasoning
gc)comprehensive knowledge/crystallized intelligence
Gsm)short term memory
Gv)visual processing
~~Spatial awareness, ability to hold and manipulate mental images
Ga)auditory processing
~~Ability to auditory stimuli
Glm)Long term storage and retrieval
Gs)Cognitive processing speed
Gt)Decision and reaction speed
Grw)Reading and writing
GQ)Quantitative knowledge
~~Comprehend quantitative information and manipulate numerical symbols
Vulnerable abilities (decrease ability with age)
fluid reasoning, short term memory, cognitive processing speed
Expertise abilities (increase ability with age)
comprehensive knowledge/crystallized intelligence
long term storage and retrieval
quantitative knowledge