Psychology assignment 5460

      A. ASSESSING INFANT REFLEXES: In this project, you will gain experience assessing infant abilities and further develop your understanding of infant reflexes. The goal is to assess two infants, one aged 1 to 4 months and the other aged 6 to 12 months. For each infant, perform the stimulation necessary to elicit the reflexive behavior. Note which of the reflexes are present (P) or absent (A) for each infant. After performing the demonstration with each infant, you should answer the questions that follow.                                                                                                 Infant 1                  Infant 2   Reflex                        Stimulation and reflex                  Sex __ Age __      Sex__ Age __       Placing                        Backs of infant’s feet are                                       drawn against a flat surface’s                                       edge: Baby withdraws foot.                P/A                  P/A       Walking                      Hold baby under arms with                                       bare feet touching flat surface:                                       Baby makes step like motions                                       that appear like coordinated walking.P/A                  P/A       Darwinian                   Stroke palm of infant’s hand:   (grasping)                    Baby makes strong fist; if both                                       fists are closed around a stick,                                       the infant could be raised to                                       standing position.                                P/A                  P/A       Tonic neck                  Baby is laid down on back:                                       Infant turns head to one side and                                       extends arms and legs on preferred                                       side and flexes opposite limbs.           P/A                  P/A       Moro (startle)              Make a sudden, loud noise near                                       infant: Infant extends legs, arms,                                       and fingers, arches back, and                                       draws back head.                                P/A                  P/A       Babinski                      Stroke sole of baby’s foot: Infant’s                                       toes fan out and foot twists in            P/A                  P/A       Rooting                       Stroke baby’s cheek with one’s                                       finger: Baby’s head turns, mouth                                       opens, and sucking movements beginP/A                  P/A       1. How many of the reflexive behaviors were exhibited by the younger infant? By the older infant?     2. Which reflexes dropped out early?     3. What responses seem to replace each of the reflexive behaviors in the older infant?     4. What might be the adaptive value of each reflex in the infant’s repertoire?  

 

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