FMLY 1010 Lecture Notes - Lecture 24: Plantar Reflex, Circadian Rhythm, Primitive Reflexes

• School: University of Manitoba
• Department: Family Social Sciences
• Course: FMLY 1010
• Professor: Christine A.Schippers

Document Summary

Adaptive reflexes = reflexes, such as sucking, that help newborns survive o. Some adaptive reflexes persist throughout life: e. g. rooting reflex (cid:449)he(cid:374) a (cid:374)e(cid:449)(cid:271)or(cid:374)"s (cid:272)heek is tou(cid:272)hed, he (cid:449)ill tur(cid:374) his head to that side o. E. g. sucking reflex automatically begin to suck an object that enters the mouth: disappear in infancy or childhood. Stimulation of certain reflexes may facilitate later development. E. g. if an infant is encouraged to exercise the stepping reflex, he is more likely to spontaneously display stepping movements, and will begin walking at an earlier age. Weak/a(cid:271)se(cid:374)t adapti(cid:448)e refle(cid:454)es suggests a (cid:374)eo(cid:374)ate"s (cid:271)rai(cid:374) is (cid:374)ot fu(cid:374)(cid:272)tio(cid:374)i(cid:374)g properl(cid:455) Primitive reflexes = refle(cid:454)es (cid:272)o(cid:374)trolled (cid:271)(cid:455) (cid:862)pri(cid:373)iti(cid:448)e(cid:863) parts of the brain (medulla, midbrain), that disappear during the first year of life. Purpose of these reflexes are less clear: e. g. Moro/startle reflex startle a baby, she will throw her arm out and arch her back: e. g.