Psychology 2040A/B Lecture Notes - Lecture 4: The Sequence, Circadian Rhythm, Sound Localization

• School: Western University
• Department: Psychology
• Course: Psychology 2040A/B
• Professor: J.Bruce Morton

Document Summary

An inborn, automatic response to a particular form of stimulation. Rooting reflex: when you stroke the baby"s cheek and they turn their head toward the source of the stimulation. This helps the infant find the nipple and it disappears around 3 weeks when it becomes voluntary) Sucking reflex: when you place your finger in an infant"s mouth and they begin sucking. The function of this is to permit feeding and it is replaced by voluntary sucking after 4 months. Swimming reflex: when the baby is face down in a pool of water and the baby paddles and kicks in a swimming motion. The function of this reflex is to help an infant survive if they are dropped in water and it disappears around 4-6 months. In the evolutionary past, this may be helped the infant cling to the mother and it disappears after 6 months.