PSY203 Study Guide - Quiz Guide: Moro Reflex, Startle Response, Primitive Reflexes
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4. 1: infants exhibit several primitive reflexes at birth. The moro reflex occurs when an infant hears a loud noise or experiences a sudden change her head position. This reflex causs her to throw her arms outward, arch her back & then bring her arms twd each other as if to hold onto something. Shrill and non rhythmic crying may be an indication of brain damage. 4. 2: visual perception dvlps rapidly in the 1st year. With this method, researchers learned when infants can perceive, but. After several of these trials, the infants began sucking motions at the sound of the tone before the nipple was presented. In this classical conditioning learning demonstration, the tone would be considered the conditioned stimulus: rachel and ross discover when they sing rap to their infant, emma, he smiles and laughs. They try other methods to get her to laugh, but she consistently laughs only when they sing rap to her.
