2021년 수능특강라이트 16강 기출 썸네일형 리스트형 2021년 수능특강라이트 16강1,2(기출+) In 1979, University of Washington psychologist Andy Meltzoff stuck out his tongue at a baby 42 minutes old, then sat back to see what happened. After some effort, the baby returned the favor, slowly rolling out his own tongue. Meltzoff stuck his tongue out again. The infant responded in kind. Meltzoff discovered that babies could imitate right from the start of their little lives (or, at least, .. 더보기 이전 1 다음