The Neurology of Abstraction
Further information: Intelligence, Mental rotation, and Mental operationsA recent meta-analysis suggests that the verbal system has greater engagement for abstract concepts when the perceptual system is more engaged for processing of concrete concepts. This is because abstract concepts elicit greater brain activity in the inferior frontal gyrus and middle temporal gyrus compared to concrete concepts when concrete concepts elicit greater activity in the posterior cingulate, precuneus, fusiform gyrus, and parahippocampal gyrus.
Other research into the human brain suggests that the left and right hemispheres differ in their handling of abstraction. For example, one meta-analysis reviewing human brain lesions has shown a left hemisphere bias during tool usage.
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Famous quotes containing the word abstraction:
“There’s no such thing as socialism pure
Except as an abstraction of the mind.
There’s only democratic socialism,
Monarchic socialism, oligarchic
The last being what they seem to have in Russia.”
—Robert Frost (1874–1963)