Cognitive Psychology: Intelligence and Language

Introduction to Cognitive Psychology

  • Focus on chapter seven: Intelligence and language.
  • Cognitive psychology encompasses memory, language, problem-solving, perception, and cognition.

Organization of Information

  • Incoming sensations are filtered by emotions and memories leading to thoughts and ultimate behaviors.
  • Concepts are categories where similar information is organized (e.g., colors, animals, abstract ideas like justice).

Prototypes

  • Prototypes represent the best examples of a category (e.g., Mahatma Gandhi as a prototype for civil disobedience).

Natural vs. Artificial Concepts

  • Natural Concepts: Developed from personal experiences (e.g., understanding snow).
  • Artificial Concepts: Defined by specific features (e.g., geometric shapes).

Schemas

  • Schemas are frameworks for organizing information containing collections of related events or concepts.
  • Schemas influence our expectations and behaviors in various scenarios (e.g., expectations in a library, behavior in an elevator).
  • Errors can occur when assumptions based on schemas do not align with reality.

Language in Cognitive Psychology

  • Language is a communication tool involving words and rules to convey meaning.
  • **Key Components of Language: **
    • Lexicon: Vocabulary of a language.
    • Grammar: Rules that structure a language.
    • Phoneme: The smallest unit of sound.
    • Morpheme: The smallest unit of meaning (e.g., root words, prefixes).
    • Semantics: Meaning derived from morphemes.
    • Syntax: Arrangement of words to form sentences.

Language Development

  • Noam Chomsky introduced the concept of a "language acquisition device," suggesting a biological mechanism for language learning.
    • Emphasizes the importance of exposure during critical periods for effective language acquisition.
    • Example of case study: Genie who missed critical language exposure leads to support for Chomsky's theory.

Behaviorist vs. Nativist Views on Language

  • Behaviorist: Emphasizes positive reinforcement in language learning (e.g., responding to babbling).
  • Nativist: Chomsky argued that much of language development is innate and complex beyond reinforcement.

Stages of Language Development

  • 0-3 Months: Reflexive communication.
  • 3-8 Months: Interest in social communication.
  • 8-13 Months: Intentional nonverbal communication.
  • 12-18 Months: First words.
  • 18-24 Months: Simple two-word sentences.
  • 2-3 Years: Three or more words in sentences.
  • 3-5 Years: Development of complex sentences and conversation skills.

Problem Solving Strategies

  • Trial and Error: Random attempts until a solution is found.
  • Algorithm: A systematic procedure guarantees a solution (e.g., step-by-step recipe).
  • Heuristics: General strategies or rules of thumb for solving problems (e.g., breaking tasks into manageable steps).

When to Use Different Strategies

  • Use when faced with complex or unimportant decisions, especially with limited time.

Example Problems

  • Example puzzle connecting nine dots with four lines illustrates creativity and thinking outside the box.
  • "Mental set" refers to becoming stuck in a fixed way of solving problems (like the candle problem).

Decision-Making Biases

  • Anchoring Bias: Focusing on initial information can mislead decisions.
  • Confirmation Bias: Seeking information that supports existing beliefs leads to a narrow view.
  • Hindsight Bias: Misbelief that outcomes were predictable after the event occurs.
  • Representativeness Bias: Using stereotypes can lead to misjudgments about individuals or situations.
  • Availability Heuristic: Relying on immediate examples can skew perception of risk (e.g., plane crashes vs. car travel).

Intelligence

  • Intelligence is defined through various lenses; often measured via IQ tests.

Theories of Intelligence

  • Spearman's g Factor: General intelligence factor guiding various abilities.
  • **Cattell's Crystallized vs. Fluid Intelligence: **
    • Crystallized: Knowledge acquired over time (stable with age).
    • Fluid: Problem-solving abilities that decline with age.
  • Sternberg's Three Intelligences: Practical (street smarts), creative, and analytical (academic).
  • Gardner's Multiple Intelligences: Eight types of intelligence including linguistic, logical-mathematical, musical, bodily-kinesthetic, spatial, interpersonal, intrapersonal, and naturalist.

Creativity

  • Creativity involves generating novel ideas and solutions; typically requires practice and knowledge.
  • Divergent Thinking: A creative approach generating multiple solutions.
  • Convergent Thinking: Applying known solutions for single-answer problems.

Measuring Intelligence

  • IQ tests have historical significance, began with Alfred Binet's test for school children.
  • Standardized tests (e.g., Stanford-Binet, WAIS) ensure consistency in administration and scoring.
  • Tests must adapt to maintain an average IQ of 100 (the Flynn effect).

Nature vs. Nurture Debate

  • The role of genetics (nature) vs. environmental factors (nurture) in determining IQ.
  • Twin studies show a higher correlation in identical twins, indicating a genetic component.

Learning Disabilities

  • Learning disabilities (e.g., dyslexia, dysgraphia) are neurological impairments, often with average to above-average IQs.
  • These disabilities can co-occur with other disorders.
  • Dysgraphia: Difficulty writing legibly; affecting written expression.
  • Dyslexia: Inability to process letters, affecting reading abilities.

Conclusion

  • Chapter emphasizes understanding how intelligence, language, and cognition interact in psychology.
  • Encouragement for students to seek clarification on the material if needed, as it may be complex.