10.5
Piaget's first stage of cognitive development is the sensorimotor stage, which spans from birth to approximately two years.
During this stage, infants learn about the world by linking sensory input with motor actions. For example, infants explore objects by placing them in their mouths to determine if they are edible. As their grasping ability improves, they may shake or bang objects to see if they produce sounds.
This enables them to understand their environment through active exploration.
Between 5 and 8 months of age, infants develop object permanence—the understanding that objects continue to exist even when they are not directly seen, heard, or touched.
Simultaneously, infants also start to exhibit stranger anxiety, a response characterized by fear of unfamiliar people. They express this fear by crying, turning away, clinging to their caregiver, or reaching for familiar faces like their parents.
This anxiety occurs when the infant cannot assimilate the stranger into a familiar schema.
ジャン・ピアジェの認知発達理論の最初の段階である感覚運動期は、子どもの人生の最初の 2 年間に及びます。この期間中、乳児は積極的に周囲と関わり、世界との直接的な相互作用を通じて認知的認識を構築します。この相互作用は主に感覚知覚と運動行動に基づいており、乳児は徐々に基本的な物理的特性を理解し、物体が環…
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