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 animalsCategory 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
Object Placement:
- An object is placed in a case.Screen Mechanism:
- A screen comes up, obscuring the object.Object Removal:
- The object is removed while the screen is up.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.