12 to 24 months: Infants use nouns as substitutes {overextension} for categories, features, or functions {chain complex nucleus} {prototype, noun}. Children do not overextend nouns that they hear.
12 to 24 months: Infants can direct angry expressions, such as having tantrums, kicking, thrashing, screaming, and holding breath, at things or people {emotion development, 12 to 24 months}. Children learn to use aggression. Children fear noises, strange events, falling, dark, being alone, and people and animals associated with pain.
12 to 24 months: Children associate words with sounds, based on context {language development, 12 to 24 months}. Familiar-object or people names are earliest words, but children also learn words expressing feelings and needs, so all word classes are present. For young children, words share features and functions. Word classes used by children do not correspond to classes used by adults.
4-Zoology-Development-Stages-Infant 12.0-24.0 Months
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Date Modified: 2022.0225