BIOLOGICAL BASES OF BEHAVIOR
PREDICTING INDIVIDUAL DIFFERENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the occipital lobe is more active when people are thinking about questions on intelligence tests.
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people who are smarter use less energy when solving problems.
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there is no correlation between processing speed and IQ scores.
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people with larger brains are always smarter than those with smaller brains.
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subjects with larger parietal lobes tended to process information more slowly.
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Detailed explanation-1: -The correct answer is B. (people who are smarter use less energy when solving problems). Explanation: Smarter people need less energy to function efficiently, to solve different problems and less smart people require more energy to solve the same tasks.
Detailed explanation-2: -In healthy volunteers, total brain volume weakly correlates with intelligence, with a correlation value between 0.3 and 0.4 out of a possible 1.0. In other words, brain size accounts for between 9 and 16 percent of the overall variability in general intelligence.
Detailed explanation-3: -Brain size has a surprisingly small impact on intelligence and behavior. Key Points: Having an unusually large brain doesn’t necessarily make someone a genius, and large-scale research suggests only a slight and tenuous relationship between brain size and intelligence.
Detailed explanation-4: -A large number of studies have been conducted with uniformly positive correlations, leading to the generally safe conclusion that larger brains predict greater intelligence. In healthy adults, the correlation of total brain volume and IQ is approximately 0.4 when high quality tests are used.
Detailed explanation-5: -The size of the brain actually has nothing to do with one’s intelligence.