Developmental Psychobiology · 1972 · 813 citations · 9 references
EducationBehavioral SciencesPsychologyChild DevelopmentDevelopmental PsychologySocial-emotional DevelopmentBehaviorEarly ChildhoodEmpathyInfancy DevelopmentInfant DevelopmentToddler DevelopmentInfant Social Perception
Abstract The behavior of 88 children between 3 and 24 months was observed before a mirror, using an objective technique to examine the child's awareness of the image as his own. The results indicate the following age‐related sequence of behavior before the mirror: the first prolonged and repeated reaction of an infant to his mirror image is that of a sociable “playmate” from about 6 through 12 months of age. In the second year of life wariness and withdrawal appeared; self‐admiring and embarrassed behavior accompanied those avoidance behaviors starting at 14 months, and was shown by 75% of the subjects after 20 months of age. During the last part of the second year of life, from 20 to 24 months of age, 65% of the subjects demonstrated recognition of their mirror images.
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Gordon G. Gallup · Science · 1970 · 1.8K citations
Social Sciences, Psychology, Zoology +15
A Handbook of Child Psychology.
C. M. Louttit · Journal of Applied Psychology · 1933 · 1.7K citations
I.—A BIOGRAPHICAL SKETCH OF AN INFANT
Charles Darwin · Mind · 1877 · 544 citations · Full text