Some articles on primary circular, circular:
... 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 ... sensation and two types of scheme (habit and circular reactions) ...
Famous quotes containing the words circular and/or primary:
“If one doubts whether Grecian valor and patriotism are not a fiction of the poets, he may go to Athens and see still upon the walls of the temple of Minerva the circular marks made by the shields taken from the enemy in the Persian war, which were suspended there. We have not far to seek for living and unquestionable evidence. The very dust takes shape and confirms some story which we had read.”
—Henry David Thoreau (18171862)
“The traditional American husband and father had the responsibilitiesand the privilegesof playing the role of primary provider. Sharing that role is not easy. To yield exclusive access to the role is to surrender some of the potential for fulfilling the hero fantasya fantasy that appeals to us all. The loss is far from trivial.”
—Faye J. Crosby (20th century)