Cognition - Piaget

Cognitive Development

Piagetian, Core Knowledge, and Vygotskian Perspectives

This chapter explores various theories related to cognitive development, focusing mainly on Piaget's Cognitive-Developmental Theory, the Core Knowledge perspective, and Vygotskian views.

Piaget's Cognitive-Developmental Theory

Overview
  • Constructivist approach: Emphasizes that children actively discover knowledge through their own activities (Berk, 2013, p. 226).

Processes of Cognitive Development

  • Schemas: Mental representations of external events, comprising thought structures, concepts, ideas, and methods of interacting with the world.
  • Initially action-based, later improving to the mental (thinking) level.
  • Mental Representation: Internal depictions of objects; thinking about objects using mental images.
  • Assimilation: Integrating new experiences into preexisting schemas during equilibrium.
  • Accommodation: Modifying existing schemas to fit new information; occurs when there is disequilibrium (Kuther, 2023, pp. 242-244).

Piaget’s Stages of Cognitive Development

  • Represent qualitative changes in various cognitive schemes occurring within the same period.
  • Invariant: Stages occur in a fixed order; skipping is impossible.
  • Universal: Stages describe cognitive development across all cultures (Berk, 2013, p. 226).

Stages of Development

  1. Sensorimotor Period: Birth to 2 years
  2. Preoperational Period: 2 to 6 years
  3. Concrete Operational Period: 6 to 11 years
  4. Formal Operational Period: 11 years and older

Sensorimotor Stage (Birth to 2 Years)

  • First stage in which infants learn about the world through their senses and motor skills.
  • Infants "think" by acting on the world through their senses (Kuther, 2023, p. 244).

Key Features of the Sensorimotor Stage

  • Circular Reaction: Repeating actions for pleasure or interest, initially occurring by chance (Kuther, 2023, p. 245).

Sensorimotor Substages

  1. Reflexive Schemes: Birth to 1 month - Newborn reflexes in response to stimuli.
  2. Primary Circular Reactions: 1 to 4 months - Simple motor habits centered around their own body.
  3. Secondary Circular Reactions: 4 to 8 months - Repeating interesting effects on surroundings, imitation of familiar behaviors.
  4. Coordination of Secondary Circular Reactions: 8 to 12 months - Goal-directed behavior; begins to grasp object permanence.
  5. Tertiary Circular Reactions: 12 to 18 months - Exploring properties through novel actions; accurate A-B search.
  6. Mental Representations: 18 months to 2 years - Internal depictions of objects; deferred imitation (Kuther, 2023, p. 248).

Development of Object Permanence

  • Phase 0-7 months: Out of sight and out of mind.
  • Phase 8-12 months: Understanding that objects exist even when not visible; overcoming the A-not-B search error (12-18 months).
  • Phase 18-24 months: Object permanence is fully developed as representational thought emerges (Berk, 2013, p. 229).

Evaluation of the Sensorimotor Stage

  • Egocentrism in Infancy: Lack of understanding that self is an object among other objects in the world.
  • What Piaget got right: Timing of object search and make-believe play.
  • What Piaget might have been wrong about: Early onset of object permanence, A-not-B search error, and other cognitive tasks occurring earlier than he suggested (Kuther, 2023, pp. 247-251).

Core Knowledge

  • Core Knowledge Perspective: Infants are born with several innate knowledge systems allowing rapid early learning and adaptation (Kuther, 2023, p. 252).

Preoperational Stage (2 to 7 years)

  • Second stage where rapid symbolic thought development occurs, although children cannot perform operations that follow logical rules (Berk, 2013, p. 243).
  • Thinking is rigid and influenced by appearance (Kuther, 2023, p. 253).

Advances in Symbolic Thinking

  • Deferred Imitation: Ability to repeat an action performed previously (Kuther, 2023, p. 251).
  • Significant advancements in language and make-believe play reflecting cognitive growth, including drawings from scribbles to shapes.

Limitations of Preoperational Thought

  1. Egocentrism: Inability to understand another’s perspective (Kuther, 2023, p. 254).
  2. Animistic Thinking: Belief that inanimate objects have feelings and intentions (Kuther, 2023, p. 254).
  3. Hierarchical Classification: Difficulty in organizing objects into classes and subclasses (Berk, 2013, p. 245).
  4. Limits on Conservation: Understanding that quantity remains the same despite changes in appearance.

Conservation

  • Centration: Focusing on one aspect of a situation while neglecting others.
  • Irreversibility: Failing to recognize that actions can be reversed (Kuther, 2023, pp. 255-256).

Follow-Up Research on Preoperational Thought

  • Evidence shows children can adjust language and consider others' perspectives, distinguishing animate and inanimate objects under certain conditions.
  • They can also engage in simplified conservation tasks and reasoning by analogy (Berk, 2013; Kuther, 2023).

Concrete Operational Stage (7 to 11 years)

  • Cognitive development in which children gain the capacity to use logic to solve problems and improve their understanding of the physical world (Kuther, 2023, p. 258).

Achievements of the Concrete Operational Stage

  • Conservation: Mastery of decentration and reversibility.
  • Hierarchical Classification: Ability to organize based on similarities/differences.
  • Transitive Inference: Understanding relationships between objects (e.g., knowing B is taller than C because A is taller than B).
  • Seriation: Arranging items by a physical dimension.
  • Spatial Reasoning: Improvement in understanding distance, direction, and cognitive mapping (Berk, 2013; Kuther, 2023).

Limitations of Concrete Operational Thought

  • Concrete operations work best with tangible objects; difficulties arise with abstract concepts.
  • Continuum of Acquisition: Mastery of tasks progresses gradually depending on experience, culture, and education (Berk, 2013, p. 252).

Formal Operational Stage (11 years and onward)

  • Piaget's highest stage where adolescents develop the capacity for abstract, logical, and systematic thinking (Kuther, 2023, p. 263).

Key Features of the Formal Operational Stage

  • Abstract Thinking: Ability to reason about ideas.
  • Hypothetico-Deductive Reasoning: Generating and systematically testing hypotheses (Kuther, 2023, p. 263).
  • Propositional Thought: Evaluating the logic of verbal statements without real-world reference (Berk, 2013, p. 254).

Limitations and Consequences of Formal Operational Thought

  • Egocentrism: Difficulty distinguishing between self and others' perspectives leads to phenomena such as the imaginary audience and personal fable.
  • Imaginary Audience: The belief that one is the center of everyone else's attention.
  • Personal Fable: Belief in the uniqueness of one’s own thoughts and experiences (Kuther, 2023, p. 266).