Infancy

• 1st Month


  • Infants can turn their head from side to side
  • Grasping reflex
  • Practice reflexes and control them
  • Cries when they are unhappy and become quiet at the sound of human voice or when they are picked up
• 2nd - 3rd Month


  • Babies can now lift their heads
  • Can grasp moderate sized things until they will be able to grasp one thing using right hand and transfer it to their left hand
  • Can now hold their head still to find out whether the object is moving
  • Can already match the voice to faces
  • Distinguish male and female
  • Size constancy
  • Infants develop the ability to perceive that occluded objects are whole
  • Social smiling
• 4th Month


  • Babies can keep their heads erect while being supported in a sitting position
  • Can now roll-over, accidentally
  • Begin to reach objects
  • Begin to coordinate sensory information and grasp objects
  • Turn toward sounds
• 6th Month


  • Babies cannot sit without support
  • Can start creeping or crawling
  • Could successfully reach for objects in the dark faster than they could in the light
  • They can now localize or detect sounds from their origins
  • Repeat actions that brings interesting results
  • Cooing
  • They can now recognize their name
• 7th Month


  • Pincer grasps could already manifest
  • Can start standing
  • Can now sit independently
• 8th Month


  • Babies can now sit without help
  • Can now learn to pull themselves up and hold on to a chair
• 10th Month


  • Can now stand alone
  • Babbling
• 11th Month


  • Babies can let go and stand alone well
  • Can now anticipate events