A team led by Michael Rutter found that disorders of this phenomenon were rare in Romanian-English orphans born during the Ceauşescu (“cho-SHESS-koo”) regime. Harry Harlow (-5[1])studied this phenomenon (10[1]-5[1])in rhesus (10[1])macaques (10[3]-5[1])by (10[1])constructing (-5[1])cloth-and-wire “surrogates,” (10[5]-5[6])which (10[2])inspired (10[1])John Bowlby’s (10[3]-5[3])theory (10[1])of this (10[1])phenomenon. (10[10]-5[3])In an (-5[1])experiment (10[1]-5[1])studying (10[2]-5[2])this phenomenon, (10[3]-5[1])a stranger (-5[1])talked to a parent (10[1]-5[1])before the parent (10[1])left the (10[1])stranger (10[1])with (10[2])their child. (10[8]-5[3])Mary (10[1])Ainsworth’s (10[2]-5[1])“strange (10[1])situation” (10[3]-5[1])experiment (10[1])studied (10[1])this phenomenon, (10[2]-5[2])whose three “styles” (10[1])are “secure,” (10[8]-5[3])“anxious-ambivalent,” (10[6]-5[2])and (10[2])“anxious-avoidant.” (10[13])For (10[1])10 points, (10[2])name this feeling (10[1])that an infant feels toward (10[1])a caregiver. ■END■ (10[20]0[2])