Editing Mirror test (section)

===Developmental reactions===
In a study in 1972, from the ages of 6 to 12 months, children typically saw a "sociable playmate" in the mirror's reflection. Self-admiring and embarrassment usually began at 12 months, and at 14 to 20 months, most children demonstrated avoidance behaviors. By 20 to 24 months, self-recognition climbed to 65%. Children did so by evincing mark-directed behavior; they touched their own noses or tried to wipe the marks off.<ref name="Amsterdam" /> In another study, in 1974, at 18 months, half of children recognized the reflection in the mirror as their own.<ref name="Lewis" />

Self-recognition in mirrors apparently is independent of familiarity with reflecting surfaces.<ref name=Priel/> In some cases, the rouge test has been shown to have differing results, depending on sociocultural orientation. For example, a [[Nso people|Cameroonian Nso]] sample of infants 18 to 20 months of age had an extremely low amount of self-recognition outcomes at 3.2%. The study also found two strong predictors of self-recognition: object stimulation (maternal effort of attracting the attention of the infant to an object either person touched) and mutual eye contact.<ref name=Keller>{{cite journal |author=Heidi Keller |author2=Relindis Yovsi |author3=Joern Borke |author4=Joscha Kärtner |author5=Henning Jensen |author6=Zaira Papaligoura  |title=Developmental Consequences of Early Parenting Experiences: Self-Recognition and Self-Regulation in Three Cultural Communities |journal=Child Development |volume=75 |issue=6 |pages=1745–1760 |year=2004|doi=10.1111/j.1467-8624.2004.00814.x |pmid=15566377 |s2cid=601275 }}</ref> A strong correlation between self-concept and [[object permanence]] have also been demonstrated using the rouge test.<ref name=Bertenthal>{{cite journal |first1=Bennett I.|last1=Bertenthal |first2=Kurt W.|last2=Fischer |title=Development of Self-Recognition in the Infant |journal=Developmental Psychology |volume=14 |pages=44–50 |year= 1978 | doi = 10.1037/0012-1649.14.1.44 |citeseerx=10.1.1.550.1903 }}</ref>