16 Questions
What did brain imaging studies help shift intelligence research away from?
Psychometric approaches
What technology was used in the early 1970s to investigate brain function indirectly?
EEG recordings from scalp electrodes
What accumulates in brain areas working the hardest in PET scans?
Radioactive glucose
What did PET scans show in the living brain?
Brain function
What is one of the even more amazing imaging technologies mentioned in the lecture?
fMRI scans of the brain
What did brain researchers use to measure the electrical activity of the brain in the early 1970s?
EEG recordings from scalp electrodes
What does a computerized axial tomography (CAT) scan show?
Brain structure as X-rays pass through the head
What is the main limitation of a PET scan compared to a CAT scan?
It cannot show brain structure
When did the first PET scanners become available?
About 1980
What hypothesis of intelligence was proposed based on the PET study in 1988?
Brain efficiency hypothesis of intelligence
What did the PET study of learning in the early 1990s involve?
Tetris, a popular computer game
What was one of the main findings of the PET study of intelligence in 1988?
More brain activity was associated with worse performance
What did researchers propose about higher intelligence based on the PET study in 1988?
It requires less brainwork
What did researchers attempt to understand after the surprising finding in 1988?
How exactly brain efficiency might relate to intelligence
What is one of the main limitations of a CAT scan compared to a PET scan?
It cannot show brain function
What can a PET scan show depending on what the brain is doing?
Different patterns based on reasoning or problem solving
Explore the use of brain imaging studies to understand intelligence and its relationship with measurable brain characteristics. Learn about the application of positron emission tomography (PET) in studying intelligence in this lecture.
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