Your Baby at 4 Months

Thinking Skills

  • Mouths everything to explore objects.
  • Prefers bright colors of red and yellow to black and white.
  • Begins to realize he is distinct from objects "out there" and to realize his actions cause something to happen.
  • Enjoys listening to speech and music. Babbles for his own pleasure with chuckles, giggles, shrieks and laughs.
  • Listens to himself talk. Says "da, ba, ma, pa, ga" consonant sounds. Notices how his speech influences adult actions -- "m-m-m" brings Mom to feed him.
  • Looks around to find source of a sound. Is quieted by music.

Emotional Development

  • Responsive to play for one hour at a time.
  • Shows signs of being tired -- will yawn, rub eyes, refuse to play, suck thumb or become restless and irritable.
  • May drool and be fussy if teething.
  • Is developing her unique personality within a predictable daily routine -- how active she is, how intensely she responds to things, what her patience and tolerance for frustration are.
  • Senses if her behavior is unacceptable to parent during daily interactions. Reacts to your tone of voice and expression.
  • Expresses joy, unhappiness, contentment, tiredness. Crying decreases as she expresses feelings with new sounds, gestures.
  • Recognizes family members with whom she lives. Loves to laugh and play with people. Vocalizes more to real person than picture.
  • Demands social attention by fussing. Cries if play is disrupted.
  • Attempts to soothe self when crying. Yells, fusses if frustrated.

To learn more about your baby's growth and development, read the following:

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