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Related Concept Videos

Schemas01:42

Schemas

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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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Natural and Artificial Concepts01:24

Natural and Artificial Concepts

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In psychology, concepts can be divided into two categories: natural and artificial. Natural concepts are formed through direct or indirect experiences. For example, consider the concept of snow. If you live in a place with regular snowfall, such as Essex Junction, Vermont, you know snow through direct experiences. You’ve seen it fall, touched it, shoveled it, and played in it. You recognize its texture, appearance, and even its smell. In contrast, if you live on an island like Saint...
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Shape and Texture of Coarse Aggregate01:25

Shape and Texture of Coarse Aggregate

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Aggregate shape is classified based on the relative sharpness or roundness of the edges and corners. This classification includes categories like rounded, angular, elongated, and flaky, each with specific characteristics. Rounded aggregates, fully shaped by attrition, are typical of river or seashore gravel, while angular aggregates, such as crushed rock, have well-defined edges. Aggregates that are elongated and flaky are less desirable, as they can reduce the workability and strength of...
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Concepts and Prototypes01:24

Concepts and Prototypes

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The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
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Schemata01:17

Schemata

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A schema is a mental construct that organizes related concepts, allowing the brain to process information efficiently. Upon activation, schemata facilitate assumptions about people or objects.
Two types of schemata are:
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Related Experiment Video

Updated: Nov 4, 2025

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Creating Objects and Object Categories for Studying Perception and Perceptual Learning

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Scene context shapes category representational geometry during processing of tools.

Heath E Matheson1, Frank E Garcea2, Laurel J Buxbaum3

  • 1University of Northern British Columbia, Prince George, BC, Canada.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|May 21, 2021
PubMed
Summary
This summary is machine-generated.

Scene context implicitly shapes how the brain represents tools. The tool network shows tool category information, with stronger predictions in the supramarginal gyrus during use contexts compared to move contexts.

Keywords:
ConceptsContextObject recognitionSemantic memoryTool network

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Area of Science:

  • Cognitive Neuroscience
  • Neuroscience
  • Psychology

Background:

  • Conceptual representation is dynamic and influenced by observer goals.
  • Observer goals can alter representational geometry in cortical networks.
  • Task-irrelevant scene context may implicitly affect the representational geometry of the tool network.

Purpose of the Study:

  • Investigate how task-irrelevant scene context implicitly alters representational geometry within the tool network.
  • Examine if representations in the tool network reflect category, grip, and shape information.
  • Determine if scene context influences the neural representation of tool categories.

Main Methods:

  • Participants performed conceptual judgments on tool images embedded in different scene contexts (use vs. move).
  • Representational Similarity Analysis (RSA) was used to investigate information in the tool network.
  • Neural representations of tool category, grip, and shape were analyzed.

Main Results:

  • Multiple regions within the tool network encode information about tool category.
  • Tool category information predicted patterns in the supramarginal gyrus more strongly in use contexts than in move contexts.
  • Scene context was found to shape the representational geometry of the tool network.

Conclusions:

  • Tool category information is distributed across various regions of the tool network.
  • Scene context plays a role in shaping the neural representation of tools.
  • The brain dynamically adjusts conceptual representations based on contextual cues.