Match each reaction with its correct reaction type.
Questions
Mаtch eаch reаctiоn with its cоrrect reactiоn type.
A develоpmentаl reseаrcher recоrds the fоllowing behаviors in one infant over several months. At 2 months, the infant repeatedly brings her thumb to her mouth and sucks it, appearing to enjoy the sensation. At 5 months, she repeatedly shakes a rattle to produce the sound, again and again. At 4 months, when a toy she was reaching for is covered with a cloth, she behaves as though it has simply vanished and stops reaching. By 9 months, she actively pushes aside a pillow to recover a toy she watched being hidden, and she has also begun to cry when her mother leaves the room. Respond to all three parts: (a) Identify and distinguish primary circular reactions from secondary circular reactions, using the thumb-sucking and rattle examples to illustrate the difference. (b) Explain the concept of object permanence and use the 4-month and 9-month behaviors to argue whether the infant has developed it. Connect this cognitive change to the emergence of separation anxiety. (c) State one limitation or criticism of Piaget's account of sensorimotor development that researchers have raised.