Some articles on primary circular, circular:
... The sensorimotor stage is divided into six substages "simple reflexes first habits and primary circular reactions secondary circular reactions coordination of secondary circular reactions tertiary circular reactions ... First habits and primary circular reactions is from 1 month to 4 months old ... this time infants learn to coordinate sensation and two types of scheme (habit and circular reactions) ...
Famous quotes containing the words circular and/or primary:
“The night in prison was novel and interesting enough.... I found that even here there was a history and a gossip which never circulated beyond the walls of the jail. Probably this is the only house in the town where verses are composed, which are afterward printed in a circular form, but not published. I was shown quite a long list of verses which were composed by some young men who had been detected in an attempt to escape, who avenged themselves by singing them.”
—Henry David Thoreau (18171862)
“A primary function of art and thought is to liberate the individual from the tyranny of his culture in the environmental sense and to permit him to stand beyond it in an autonomy of perception and judgment.”
—Lionel Trilling (19051975)