Self -concept a pe(cid:396)so(cid:374)"s self-concept, which refers to the attitudes, behaviours, and values that a person believes make himself or herself a unique individual. Origins of self-recognition modern researchers believe that the foundation of self-(cid:272)o(cid:374)(cid:272)ept is the (cid:272)hild"s a(cid:449)a(cid:396)e(cid:374)ess that he o(cid:396) she e(cid:454)ists. At some point early in life, children must realize that they exist independently of other people and objects in the environment, and that their existence continues over time. One approach is to have the mother place a (cid:396)ed (cid:373)a(cid:396)k o(cid:374) he(cid:396) i(cid:374)fa(cid:374)t"s (cid:374)ose. Then the infant is returned to the mirror. Many one-year-olds touch the red mark on the mirror, showing that they notice the mark on the face in the mirror. At about 15 months of age, however, an important change occurs: many babies see the red mark in the mirror, then reach up and touch their own noses.