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Infant cognitive development is the first stage of human cognitive development, in the youngest children. The academic field of infant cognitive development studies of how psychological processes involved in thinking and knowing develop in young children. [ 1 ]
The babbling period ends at around 12 months because it is the age when first words usually occur. However, individual children can show large variability, and this timeline is only a guideline. From birth to 1 month , babies produce mainly pleasure sounds, cries for assistance, and responses to the human voice.
For a newborn, crying is the only means of communication. Infants 1–5 months old have different tones of crying that indicate their emotions. Infants also begin laughing at this stage. At 6–7 months old, infants begin to respond to their own name, yell and squeal, and distinguish emotions based on the tone of voice of the parent.
This develops to more rhythmic movements of the entire body at 3 to 5 months to demonstrate the child's anger or delight. [128] Between 9–12 months of age, children view themselves as joining the communicative world. [118] Before 9–12 months, babies interact with objects and interact with people, but they do not interact with people about ...
Typically grows at a similar rate to the previous month, usually growing between 1 and 1.5 inches (2.5 and 3.8 cm) and gaining about 2 pounds (910 g). [23] Resting heart rate is usually between 80 and 160 beats per minute, and it typically stays within that range until the infant is about one year old. [18] Motor development
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Therefore, the stress response may be activated from weeks to months or even years. [4] Prolonged stress leads to adverse effects such as permanent emotional or developmental damage. [4] If sufficient support is not available, this type of stress can result in permanent changes in brain development. [4]
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