Cognition, Language, and Intelligence

Thinking & Intelligence

Overview

  • This section covers cognition, language, problem-solving, intelligence, and creativity, along with measures of intelligence and the source of intelligence.

What is Cognition?

  • Cognition: The mental process encompassing information, sensations, emotions, memories, thoughts, and behavior.

    • Information and sensations are perceived by the brain, filtered through emotions and memories, and processed into thoughts.

Concepts & Prototypes
  • Concepts: Categories of linguistic information, images, ideas, or memories that help to see relationships among different experiences.

    • Can be classified as complex/abstract versus concrete.

  • Prototype: The best example or representation of a concept.

    • Example Question: Is lasagna a “salad” or a “sandwich”?

Natural & Artificial Concepts

  • Natural Concepts: Developed through direct or indirect experience.

    • Example: Our concept of snow.

  • Artificial Concepts: Defined by a specific set of characteristics.

    • Example: Properties of geometric shapes (e.g., squares, triangles).

Schemata

  • Schema: A mental construct that organizes related concepts and leads to assumptions about persons, objects, or situations.

    • Example: Assumptions made about a “doctor” or “marriage.”

  • Role Schema: Assumptions about behaviors of individuals in specific roles.

    • Example: The expected behavior of a “librarian.”

    • Variability in these assumptions can happen across cultures and countries.

    • Schemata dictate behavior and may result in ingrained habits (e.g., facing forward in an elevator).

  • Event Schema (Cognitive Script): A collection of routine or automatic behaviors.

Language

  • Referenced Work: "The Language Instinct: How the Mind Creates Language" by Steven Pinker.

    • Argues for innate human capacity for language.

    • Engages with Noam Chomsky's idea of universal grammar but refutes the notion that evolutionary theory can't elucidate language instinct.

Components of Language
  • Language: A communication system utilizing words and organized rules to transmit information.

    • Lexicon: The words used in a language.

    • Grammar: The rules governing meaning derivation from the lexicon.

    • Phoneme: The smallest recognizable sound unit (e.g., /ah/, /eh/).

    • Morphemes: The smallest units of language that convey meaning.

  • Construction of language involves:

    • Semantics: Meaning derived from morphemes and words.

    • Syntax: Arrangement of words into sentences.

Language Examples
  • English lexicon has particular rules; for example,

    • The suffix "-ed" in "walked" denotes past tense.

    • The word "see" is comprised of two phonemes: "s" and "ee."

    • "s" differentiates "see" from "flee."

    • Phonemes on their own are not morphemes unless they combine to form words that convey meaning.

    • Example: The morpheme “-ed” signifies past tense, thus in the sentence “I walked to the park to see the ducks playing in the pond,” it showcases past action.

Language Development

  • Noam Chomsky: Suggested that mechanisms for language acquisition are biologically driven through a concept termed the language acquisition device.

    • Indicates that language can develop without formal instruction, beginning even in the womb.

    • Challenges behaviorism, noting that linguistics development shows universal patterns across cultures.

  • Critical Period: The time frame early in life where language acquisition is most effective.

    • Absent language exposure during this critical period can hinder full language acquisition capabilities.

Case Study: Genie
  • Genie was discovered at age 13, raised under severe isolation and abuse.

    • She had no spoken language at the time of her discovery.

    • Despite receiving help, she could learn vocabulary but struggled with grammar, exemplifying the impact of language deprivation during the critical period.

Stages of Language Development
  1. 0–3 months: Reflexive communication.

  2. 3–8 months: Reflexive communication and interest in others.

  3. 8–13 months: Intentional communication and sociability.

  4. 12–18 months: First words.

  5. 18–24 months: Simple two-word sentences.

  6. 2–3 years: Sentences containing three or more words.

  7. 3–5 years: Complex sentences and conversations, with age-related loss of ability to differentiate phonemes.

Language & Thought

  • Is the relationship between language and thought bidirectional?

    • Linguistic Determinism: The idea that language influences thought processes.

    • Example: In George Orwell’s 1984, the language structure is manipulated to restrict freedom of thought and dissent against the government.

  • Current perspective holds that while language and thought are related, the strong influence of language on thought isn't universally supported.