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intelligence and cognitive functioning
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einstein's brain
200gm lighter than average
did NOT contain more neurons than average
higher ratio of glial cells to neurons in the left parietal lobe
parietal lobes were larger
->important in math and visual-spatial processing
IQ testing
predict
->school performance
->job performance
->income
->socioeconomic level
raven progressive matrices
practical intelligence
aspergers individuals on average score higher
influenced by culture
lumpers
intelligence is single general factor (g)
->those high in one skill are often high in others
splitters
made up of several mental abilities
brain correlates of intelligence
the volume of gray matter (frontal areas)
brain size
thicker cortex
faster nerve conduction (thicker myelination)
->small tightly packed processing modules (columns)
speed and intelligence
IQ scores are correlated with reaction time and nerve conduction velocity
IQ is related to:
enhanced myelination
faster transfer from short term to long term
less energy use while engaged in tasks
->less glucose metabolism
3 clusters of intelligence
linguistic:
language:left frontal and temporal lobes
spatial:
right; parietal lobe
logical-math:
(both areas are active)
->calculations and arrhythmic facts; left frontal
->estimations and visual representation; parietal lobe
hereditarian view
racial differences in IQ are genetic
corresponds to brain size
APA task force-data don't support hereditarian position
flynn effect
overall improvement of intelligence test scores since 1930
attributed to improved nutrition and increase years of schooling over the last 50 years
adoption and IQ scoring
children <6 years old adopted into middle class homes showed 16 IQ points increase
IQ still more correlated with biological parents than adoptive parents
->increase over time
this helps distinguish genetics from environment
aging and intelligence
low motivations to perform tasks
reduced speed of processing accounts for 99% of age related differences in working memory
loss of coordination in default mode network
->preparedness for action
losses minimized via.
->practice
->diet
->self-esteem
->increased GABA
Author
casiemarie
ID
253409
Card Set
intelligence and cognitive functioning
Description
final exam
Updated
2013-12-16T22:03:28Z
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