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C H A P T E R 5
COGNITIVE CHANGES WITH AGING
INTELLIGENCE AND AGING
•Intelligence •the theoretical limit of
an individual’s
performance
•Intelligence Quotient (IQ) •an individual’s relative
abilities in making
judgments, in
comprehension, and in
reasoning
AGE-RELATED CHANGES IN INTELLIGENCE
•Peak performance varies by test
•Performance on timed tests
declines
•Performance on non-timed test
remains stable until the 80s
•Rarely decline in all five primary
mental abilities (PMA)
•High scorers continue to do well
even among oldest-old
•Declines in tests of fluid
intelligence begin earlier than in
crystallized intelligence
PROBLEMS IN THE MEASUREMENT OF
COGNITIVE FUNCTION
•Many studies are cross-sectional design not longitudinal approaches
•Historical factors may have greater effect on intelligence scores than age
per se
•Attrition-subject and selective
FACTORS THAT MAY INFLUENCE INTELLIGENCE IN
ADULTHOOD
•Biological/Structural changes in the brain
•Educational attainment
•Involvement in complex work
•Cardiovascular disease
•Hypertension
•Sensory deficits
•Occupational level
•Nutritional deficiencies
THE PROCESS OF LEARNING AND MEMORY
•Learning •Process by which new information is
encoded
•Memory •Secondary (long-term) memory
•permanent memory store
•Ionic and echoic memory
•Primary (working) memory
•Temporary stage of holding
information
THE INFORMATION PROCESSING MODEL
•Information Processing Model
•conceptual model of how
learning and memory take place
•Aging appears to reduce
efficiency of processing
information.
•Aging does not influence storage
capacity of memory.
TYPES OF MEMORY
•Episodic Memory
•Explicit Memory
•Flashbulb Memory
•Source Memory
•Procedural Memory
•Semantic Memory
•Implicit Memory
FACTORS AFFECTING LEARNING IN OLD AGE
•The Importance of Attention •Selective attention
•being able to focus on relevant information while ignoring
irrelevant information
•Sustained attention
•keeping alert to focus on a specific stimulus over time
•Attentional control
•ability to allocate attention among multiple stimuli
simultaneously
AGE-RELATED CHANGES IN MEMORY
•Types of retrieval •Recall and Recognition
•Explanations of older adults’ difficulties
with retrieving information
•Disuse theory
•the view that memory fades or
is lost because one fails to use
the information
•Interference theory
•the view that memory fades or
is lost because of distractions
experienced during learning
AGE-RELATED CHANGES IN MEMORY
•Tip-of-the-Tongue States (TOTs) •difficulty retrieving names from secondary
memory but often spontaneously recalled
later
•Explanations of the increase of TOTs •Decrement model
•Incremental knowledge gain
IMPROVING COGNITIVE ABILITIES IN OLD AGE
•Cognitive Retraining •teaching research participants how to
use techniques to keep minds active and
maintain good memory skills
•Memory Mediators •visual and verbal links between
information to be memorized and
information that is already in secondary
memory
WISDOM AND CREATIVITY
• Wisdom
• Criteria of wise behavior
• Factual knowledge
• Procedural knowledge
• Lifespan contextualism
• Value relativism
• Managing uncertainty
• Creativity
• Ability to apply unique and
feasible solutions to new
situations
• Measure of creativity
• Divergent thinking