Cognitive Development: The First Five Years
Thinking, making new connections, and discovering the world
In the first year of life wonderful and dramatic things happen. The baby usually triples her birth weight; she moves from being totally dependent to crawling and walking. Well before they use spoken language, infants are observing and making connections about what's going on around them. They are soon able to communicate, to interact with others, and to think about their surroundings. Each area of growth occurs in tandem with others- e.g., social and emotional with motor, communication and thinking.
Milestones are flexible; they are approximate times when certain abilities are observable. There is no strict timetable for acquiring abilities or confronting different challenges, and there's a wide range for what's considered normal. Every child grows and adjusts to the world at his or her own pace. This article outlines the development of cognitive abilities.
First Year Milestones
The newborn explores the world by mouthing objects; by one year he expands his exploratory techniques by imitating actions, manipulating objects and planning two-step strategies to get what he wants. He is establishing the base on which to build increasingly complex cognitive accomplishments.
Between birth to 4 months the child
- turns his head to look towards sound
- follows moving toys with eyes
- recognizes family members
- explores new objects by mouthing
- makes simple associations, e.g. if he cries he gets picked up memory: starts to expect feedings at regular intervals; distinguishes key people in his life; may single out mother in a group of people
By 5-8 months the child
- seeks stimulation
- explores by touching, shaking and tasting objects
- explores his own body with hands and mouth
- discovers that objects exist even when they're out of sight; watches and looks for hidden toy
- pulls string to get toy out of reach
- explores cause and effect by banging, rattling and dropping objects
- memory: may anticipate a whole object after seeing a piece of it; observes comings and goings of others; remembers sequences such a jack-in-the-box that jumps up at the end of a song
By 9-12 months the child
- holds 3 toys at the same time
- finds a hidden toy
- uses an object as a container
- imitates actions
- holds one toy and explores with the other hand
- starts linking meanings to gestures, shaking his head no and waving bye-bye
- memory: notices when someone leaves room and anticipates their return
- categorizes objects (thinks about similarities and differences), and develops symbolic thought.
- "thinks" about things in very simple ways without actually needing them to be present and visible, an ability which leads the way to the development and use of imagination
Reprinted with the permission of the NYU Child Study Center. © NYU Child Study Center.
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