concepts

Conceptual Development

  • Objectives
       - By the end of this section, students should understand:
         - The developmental timeline of understanding broad conceptual categorization of objects
         - The developmental timeline of understanding more abstract concepts such as causality, time, space, and number
         - Theoretical perspectives on what drives the development of categories and concepts

What are Concepts?

  • Definition:
       - Concepts are mental representations, general ideas, or understandings that can be used to group together objects, events, qualities, or abstractions that have some similarity.

  • Two Groups of Fundamental Concepts:
       - Who/what?: Refers to humans or categories of animate and inanimate entities.
       - Where? When? Why? How?: Involves our experiences in the world which inform our understanding of these concepts.

Who/What?

  • Three General Categories:
       - Inanimate objects
       - People
       - Other animals

  • Category Hierarchies:
       - An organized set of sub-relations within a category that allows for a more refined understanding of classifications.

Categories in Infancy

  • Perceptual Categorization:
       - This involves the grouping of objects or items that are similar based on perceptual characteristics such as visual appearance.

Categories Beyond Infancy

  • Levels of Categories:
       - Superordinate Level: The highest level of categorization (e.g., animals).
       - Basic Level: Intermediate level that is commonly used in daily life (e.g., mammal).
       - Subordinate Level: A more specific categorization (e.g., types of dogs such as terrier, spaniel).

  • Question of Matching Categories:
       - Do children's categories match adult categories?
       - Examples:
         - Superordinate: animal
         - Basic: mammal
         - Subordinate: terrier, spaniel
         - Various examples of fish and their categorization (e.g., trout, shark).

Causal Understanding

  • Cause-effect Relations:
       - It's easier to remember concepts and the order of events if they are causally connected.
       - Example: The terms "wug" and "gillie" provided context for preschoolers, enabling them to categorize novel pictures appropriately.
       - Research Reference: (Krascum & Andrews, 1998) - This demonstrates that understanding cause-effect relationships aids learning and memory at all ages.

Theory of Mind

  • Concepts:
       - Understanding other people's thoughts and beliefs.

  • Key Components:
       - False-belief Problems: Tasks assessing the understanding that others can hold beliefs that are inconsistent with reality.
       - Theory of Mind Module (ToMM):
         - Theoretical brain mechanisms thought to be specifically dedicated to understanding other human beings.
       - ASD as Support for ToMM:
         - Autism Spectrum Disorder provides insights into the functioning of ToMM and its implications for social understanding.

The Development of Number Sense

  • Inquiry:
       - Can babies count?
       - Can babies add and subtract?

Experiment Overview

  1. Object Placement:
       - An object is placed in a case.

  2. Screen Mechanism:
       - A screen comes up, obscuring the object.

  3. Object Removal:
       - The object is removed while the screen is up.

  4. Outcomes:
       - Impossible Outcome: The screen drops revealing two objects.
       - Possible Outcome: The screen drops revealing one object.
       - Reference: Wynn et al., 1992

Habituation and Numerosity

  • Study Reference: Izard et al., 2008

  • Process Overview:
       1. Standard Numerosity (SN): Regular representation of 50 objects in a continuous stream of stimulation.
       2. Deviant Numerosity (DN): Introduces a deviation from standard.
       3. Standard Object (SO): A standard representation used for comparison.
       4. Deviant Object (DO): An object that represents a deviation in the context of numerosity.

Two Possible Number Mechanisms

  • Numerosity Accumulator Model:
       - Also known as subitization; it functions as an "accumulator" that fills up with the representations of items present in an array.

  • Object File “Marker”:
       - Each item in the array is marked individually, allowing for the total count of distinct markers at the end, which indicates the quantity present in the array.

Visual Aids

  • Figure 9.8:
       - Display illustrating the relationship between the Numerosity Analog Accumulator, Magnitude Object Representation, and the Object File Representation.