Early Language Development: Semantics, Pragmatics, Comprehension, Memory, and Play

Comprehensive vocabulary flashcards covering semantic acquisition, pragmatic and social development, language comprehension mechanisms, working memory systems, and play development.

Fast-Mapping

The initial phase of word learning involving the establishment of a novel word entry in the mental lexicon after only a single exposure to it.

Slow-Mapping

The extended period of enrichment and semantic refinement that takes place after a word entry is established in the lexicon, varying according to repeated experience.

Referential Language Learners

Children whose early vocabularies contain a high proportion of object labels, who demonstrate a vocabulary spurt, and who attain semantic and morpho-syntactic milestones earlier than expressive children.

Expressive Language Learners

Children whose early vocabularies feature a higher proportion of social phrases and unanalyzed language chunks, who acquire words at a steady pace without a word spurt, and who exhibit larger MLUs from holistic, rote utterances.

Whole Object Principle

An innate lexical constraint whereby a child assumes that a novel label refers to the entire entity rather than to one of its parts or attributes.

Principle of Reference

The innate lexical assumption that arbitrary symbols and labels refer to entities, actions, and objects in the environment.

Noun Category Bias

The developmental tendency of young children to interpret novel word labels predominantly as nouns, establishing the principle of reference.

Principle of Mutual Exclusivity

An innate lexical bias based on the premise that each referent possesses only one single label.

Principle of Extendibility

The innate assumption that a single verbal symbol can apply to multiple referents if they share common characteristics.

Shape Bias

The lexical constraint leading children to generalize names to novel entities that share the same shape rather than sharing color, size, or texture.

Novel-Name-Nameless Assumption

The principle that a novel label refers to an entity that does not already have an established name in the child's lexicon.

A process-of-elimination rule where a child assumes a brand-new word belongs to an object they don't already have a name for.

Categorical Assumption

The assumption that extends word labels beyond mere perceptual similarity to taxonomic category groupings and functional knowledge.

Conventionality Assumption

The expectation that word symbols and meanings are shared across a linguistic community and do not arbitrarily change.

The expectation that word names and meanings are shared by everyone in the community and don't randomly change from person to person.

Semantic Bootstrapping

A learning scaffold where knowledge of real-world event roles (such as agent and action) is used to deduce grammatical relations and sentence structures like SVO order.

Using what you already know about real-world events (who did what) to figure out the grammatical structure and word order (like Subject-Verb-Object) of a sentence.

Syntactic Bootstrapping

The process by which a child uses the surrounding grammatical frame and morphological markers of an unfamiliar word to deduce its lexical meaning.

Prosodic Bootstrapping

Using speech rhythm, pauses, pitch excursions, duration, and stress patterns to identify linguistic units and phrase boundaries in auditory input.
(Using the natural music, rhythm, and pauses of speech to break a continuous stream of sound into grammatical chunks and sentences.)

Type:Token Ratio (TTR)

A language sample measure of lexical diversity calculated by dividing the number of different words (types) by the total number of words produced (tokens).

Pragmatics

The rule-governed domain of language behaviors encompassing communicative intentions, social use, and linguistic interaction across multiple modalities.

Perlocution

The earliest prelinguistic stage of communication wherein the infant produces vegetative behaviors and cries that have communicative effect without intentional purpose.

Illocution

The prelinguistic communication stage characterized by clear communicative intent expressed through gestures, sound effects, and non-symbolic vocalizations.

Locution

The linguistic stage of communication wherein communicative intent is encoded into conventional language symbols and spoken words.

Primary Intersubjectivity

A developmental milestone from $0$ to $6$ months involving dyadic, face-to-face emotional exchanges and mutual gaze between an infant and caregiver.

Secondary Intersubjectivity

A communicative milestone emerging at $6$ months and older characterized by triadic interaction where infant and caregiver coordinate attention onto an external object.

Theory of Mind (ToM)

The cognitive ability to recognize that other individuals possess their own mental states, emotions, thoughts, and perspectives that may differ from one's own.

Symbolic Use of Gesture

The communicative behavior of using an object or body movement as a representational symbol to signify an action or referent (such as using a banana or hand shape to represent a telephone handset).

Emblem Gestures

Conventional, culturally defined gestures that stand independently with specific verbal meanings, emerging developmentally between $24$ and $30$ months.

Beat Gestures

Rhythmic hand gestures that accompany the prosodic cadence and emphasis of spoken discourse without conveying specific semantic content, developing after $30$ months.

Language Comprehension (Receptive Language)

An individual's ability to decode and understand the linguistic information in a message, typically augmented by nonlinguistic environmental context.

(An individual's ability to decode and understand a spoken message, using immediate outside clues (like gestures, who is talking, and the surrounding environment) to help make sense of it.)

Auditory Processing

The physiological and cognitive process of detecting, decoding, and analyzing acoustic signals, integrating them with existing knowledge, and producing a meaningful interpretation.

Detection (Auditory)

The most fundamental auditory processing ability, defined as the basic perception of the presence or absence of an acoustic sound.

Discrimination (Auditory)

The ability to differentiate suprasegmental acoustic features (such as tone) and segmental linguistic units (such as phonemes, morphemes, and syllables).

Identification (Auditory)

The auditory processing stage involving the recognition and semantic understanding of word-level linguistic signals.

Otitis Media

Middle ear inflammation that, when repeated or chronic, results in fluctuating conductive hearing loss, producing inconsistent acoustic input and degraded spoken language models.

Working Memory

A multicomponent cognitive workspace described by Baddeley that temporarily stores, manipulates, and manages verbal and visuo-spatial information using limited neural resources.

Phonological Loop

The working memory workspace dedicated to encoding, maintaining, and manipulating speech-based sequences of words and non-words.

Phonological Store

The passive subcomponent of the phonological loop that holds verbal and acoustic trace information in conscious awareness for a brief duration.

Articulatory Rehearsal

The active subvocal rehearsal mechanism of the phonological loop that prevents memory decay and refreshes acoustic traces in the phonological store.

Visuo-Spatial Sketchpad

The working memory workspace specialized for temporary maintenance, recognition, and manipulation of visual and spatial information.

Central Executive

The supervisory system of working memory that modulates attention, allocates cognitive resources, aids episodic buffer processing, and transfers information into long-term storage.

Episodic Buffer

A temporary working memory storage component responsible for multimodal integration, translating visual representations into verbal codes and integrating semantic memory with phonology.

A temporary workbench in working memory that blends different types of information (visuals, spoken words, and long-term memories) into a single, cohesive package.

Non-Word Repetition

A clinical task assessing phonological loop capacity that reflects phonological storage integrity and directly predicts receptive vocabulary development at ages $4$ and $5$ years.

Sensorimotor Play

The earliest stage of play wherein an infant uses sensory exploration and physical motor manipulation (such as mouthing, banging, or shaking) to examine objects.

Relational Play

A play milestone emerging around $9$ months where an infant combines two objects together based on how their physical properties interact, such as putting items into containers and dumping them out.

Functional Play

Play behavior emerging around $12$ months involving the conventional use of objects and toys according to their true design and intended purpose.

Constructive Play

A form of play wherein the child manipulates play items to build or assemble an end product, such as blocks, puzzles, or thematic construction sets.

Dramatic Play

An advanced form of pretend play emerging around $48+$ months involving complex thematic scripts, role adoption, collaborative organization with peers, and sequenced storylines.

Decontextualization

The cognitive progression in pretend play where a child moves from using realistic props to substituting neutral or unrealistic objects, culminating in purely abstract or imaginary play.