Comprehensive Notes on Linguistic Theory, Language Change, and Child Language Acquisition

Core Theories of Language Change

• Cultural Transmission Theory: (Associated with Orthography). Developed by researchers like Hartl and Clark, this theory posits that language changes when individuals and groups perceive a functional or social benefit in a change. This change is transmitted through culture, functioning similarly to biological evolution; only linguistic features that are useful or beneficial will survive in the long term.
• Functional Theory: (Associated with Semantics and Texts A, B, and C). Proposed by Michael Halliday, this theory argues that language changes to suit the needs of its users. This includes the creation of new words to describe new inventions, social trends, fashions, or concepts.
• Informalisation: Conceptualized by Sharon Goodman and Norman Fairclough, this describes the historical shift where society—and consequently language—has become less formal over time. Contemporary texts appear less formal compared to their historical counterparts.
• Random Fluctuation Theory: Proposed by Charles Hockett, this theory suggests that language changes are like fashion: random and unpredictable. While difficult to support scientifically, it explains social borrowing, slang, and accidental coinages like "pwned" (a gamer term derived from a typo of "owned").
• Theory of Lexical Gaps: This suggests there is often "space" in a language for a new word to emerge. For a new or replacement word to be fully adopted, it must be accepted by a sufficient number of speakers. This connects to the PIDC model.
• The PIDC Model: A framework for the implementation of new language, described by Jean Aitchison, involving four stages:     * Potential: There must be a need or potential for a new word.     * Implementation: The new word is actually created and starts being used.     * Diffusion: The word spreads beyond its original small group of users.     * Codification: The word is eventually validated by being entered into a dictionary and recognized officially.
• Substratum Theory: This theory focuses on language change resulting from contact between different languages or dialects. An example includes the British English adoption of American English terminology.
• Wave Model of Language Change: Developed by Johannes Schmidt or C.J. Bailey, this model suggests that language change spreads like a ripple in a pond. Users closest to the center of the change (geographically, temporally, or socially) are the most significantly affected.
• S-Curve Model of Language Change: Proposed by Chan (referenced specifically for Text C), this model indicates that the uptake of new words follows an "S" shape on a graph: initial steady uptake, followed by a rapid acceleration, and finally flattening out as the word becomes established.
• Sapir-Whorf Hypothesis: (Referenced for Text A). Proposed by Edward Sapir and Benjamin Lee Whorf, this explores the relationship between language and thought, ranging from linguistic determinism (language determines thought) to linguistic relativism (language influences thought).
• Structuralism and Semiotic System Theory: Based on Ferdinand de Saussure, this theory views words as a combination of the Signifier (the sound or written form) and the Signified (the mental concept or meaning). Saussure argued that the connection between the signifier (e.g., the word "tree") and the actual object is arbitrary and established only by cultural convention.

Areas of Linguistics and Fundamental Concepts

• Lexis, Semantics, and Pragmatics: Focuses on word choices, shifts in meaning, and how social context influences language use.
• Grammar and Syntax: Refers to sentence structure, parts of speech, and punctuation rules.
• Orthography: Relates to capitalization, spelling systems (including "odd" or archaic spellings), and the use of specific letters.
• Morphology: The study of word formation, specifically Greek and Latin roots, prefixes, and suffixes.
• Phonology: The study of the specific sounds of a language.
• Etymology: The historical background and origin of words.
• Synchronic vs. Diachronic Variation: Synchronic refers to language at a single point in time (contemporary); diachronic refers to language change over a long historical period.
• Semantic Processes:     * Amelioration: A word's meaning becomes more positive over time.     * Pejoration: A word's meaning becomes more negative over time.     * Broadening: A word's meaning becomes more general.     * Narrowing: A word's meaning becomes more specific.
• Lexical Processes (Word Formation):     * Archaism: A word that has fallen out of use entirely.     * Archaic: Words that sound old-fashioned and are no longer in common use.     * Derivation: Creating new words from existing ones (e.g., adding affixes).     * Neologism / Coinage: The creation of a completely new word.     * Blending: Combining parts of two words (e.g., "brunch").     * Compounding: Combining two whole words (e.g., "notebook").     * Borrowing: Taking words from other languages.
• Grammatical Processes:     * Affixation: Adding a prefix or suffix to a base word.
• Definitions of Meaning:     * Denotation: The literal, dictionary definition of a word.     * Connotation: The associations or emotional overtones a word carries (e.g., "home" suggests security and love, whereas "house" is more literal).     * Explicit Meaning: Obvious, stated meaning.     * Implicit Meaning: Suggested or hidden meaning.
• Attitudes Toward Language:     * Prescriptivist: The view that there is a "Gold Standard" of English that must be preserved; change is often seen as decay.     * Descriptivist: The view (championed by Jean Aitchison) that there is no fixed standard, and English evolves naturally as a product of its users.

Child Language Acquisition (CLA): Stages and Early Development

• Major Stages:     * Holophrastic Stage: Single-word utterances that convey a whole sentence worth of meaning.     * Telegraphic Stage: Brief, efficient sentences lacking function words (e.g., "Daddy go work").     * Post-Telegraphic Stage: Utterances become more grammatically complex, including the use of auxiliary verbs and conjunctions.
• Halliday’s seven functions of language:     * Instrumental: To fulfill a physical need (e.g., "Juice please").     * Regulatory: To control the behavior of others (e.g., "Mummy sit").     * Interactional: To develop social relationships (e.g., "I love you").     * Personal: To express opinions, identity, and feelings (e.g., "I like that one").     * Representational / Informative: To relay or request information (e.g., "What's that?").     * Heuristic: To explore and learn about the world (e.g., "Why is the sky blue?").     * Imaginative: To create imaginary worlds or tell stories (e.g., "I'm a caterpillar").
• Jean Aitchison’s Three Stages of Learning Meaning:     * Labelling: Learning the names of objects and ideas.     * Packaging: Testing the limits of labels; this is where under-extensions (using "apple" only for one specific green apple) and over-extensions (using "apple" for all round fruit) occur.     * Networks: Understanding connections between words, such as identifying that "pineapple" and "banana" both belong to the category of "fruit."

Theoretical Perspectives on Acquisition

• Behaviorism (B.F. Skinner): Focuses on Operant Conditioning. Language is learned through imitation and reinforcement (rewards/corrections).
• Innatism (Noam Chomsky): Proposes an innate Language Acquisition Device (LAD). Children are born with an inherent ability to learn language. This is supported by the concept of the Virtuous Error (e.g., saying "runned" instead of "ran"), which suggests children are applying grammatical rules they have figured out themselves rather than just imitating.
• Cognitivism (Jean Piaget): Argues that language development is a result of cognitive development. A child must understand a concept (like "size" or "past time") before they can use the words associated with it.     * Object Permanence: The realization that objects still exist even when hidden. Piaget observed a "naming spurt" in children once they master this concept.
• Interactionism (Jerome Bruner): Developed the Language Acquisition Support System (LASS) as a response to Chomsky’s LAD. Bruner emphasizes the role of the social environment and caregivers in supporting language development.

Detailed Cognitive Development (Piaget)

• Key Cognitive Processes:     * Schemas: Mental frameworks or concepts used to interpret information.     * Assimilation: Fitting new information into existing schemas.     * Accommodation: Altering existing schemas to fit new information.     * Equilibrium: A state of cognitive balance where thought processes match the environment.
• Piaget’s Four Stages:     * Sensorimotor (0 to 2 years): Motor responses to sensory stimuli; development of object permanence.     * Pre-operational (2 to 7 years): Symbolic thinking and use of mental images. Characterized by Egocentrism (difficulty seeing other viewpoints) and a lack of Conservation (understanding that quantity stays the same even if shape changes).     * Concrete Operational (7 to 11 years): Logical thought applied to concrete objects. Mastery of conservation and classification (grouping items).     * Formal Operational (11+ years): Ability to handle abstract, hypothetical, and theoretical concepts.

Detailed Social Development (Vygotsky)

• Sociocultural Theory: Lev Vygotsky argued that social interaction and culture are the primary drivers of cognitive development. In contrast to Piaget, Vygotsky believed social learning precedes cognitive development.
• Zone of Proximal Development (ZPD): The gap between what a learner can do independently and what they can do with help. Learning is most effective within this zone.
• More Knowledgeable Other (MKO): Any person (parent, teacher, peer) who has a higher skill level or better understanding of a task and provides guidance within the ZPD.
• Scaffolding: The temporary, structured support provided by an MKO. This support is gradually reduced as the child's competence increases.
• Egocentric Speech: Vygotsky viewed this "self-talk" (common in children aged 3–4) as a problem-solving tool and a release of tension, which eventually transitions into "inner speech" rather than simply disappearing as Piaget suggested.

Jerome Bruner’s LASS and Curriculum Ideas

• 3 Types of Representation:     * Enactive Representation: Learning through physical action (e.g., cutting a cake to learn division).     * Iconic Representation: Linking physical experience to mental images or pictures (e.g., drawing the cut cake).     * Symbolic Representation: Using abstract symbols and language (e.g., using mathematical symbols like $\frac{1}{2}$).
• Spiral Curriculum: An educational approach where fundamental ideas are revisited at regular intervals with increasing complexity and clear connections to previous learning.

Phonology and Sound Discovery

• Phonetics vs. Phonology: Phonetics is the physical study of sound production/perception; phonology is the study of sound systems in a language.
• Manner of Articulation:     * Plosives: Sounds created by fully stopping and then suddenly releasing air (e.g., $\text{/p/}$, $\text{/b/}$, $\text{/t/}$, $\text{/d/}$, $\text{/k/}$, $\text{/g/}$).     * Fricatives: Sounds created by friction as air passes through a narrow channel (e.g., $\text{/f/}$, $\text{/v/}$, $\text{/s/}$, $\text{/z/}$, $\text{/h/}$). These can be extended as long as the speaker has breath.
• The Fis Phenomenon (Berko and Brown, 1960): A famous study demonstrating that a child's perception of phonemes outpaces their physical production.     * Verbatim Example:     * Adult: "Is this your fis?"     * Child: (Rejects the question because the adult used the wrong sound).     * Adult: "Is this your fish?"     * Child: "Yes, my fis."     * Conclusion: The child recognizes the disparity in the adult form but lacks the coordination of speech muscles to produce the $\text{/ʃ/}$ sound themselves.