Related Experiment Video
Updated: Jul 20, 2026
05:39
Generating Strictly Controlled Stimuli for Figure Recognition Experiments
Published on: March 18, 2019
Asymmetries in categorization, perceptual discrimination, and visual search for reference and nonreference exemplars
Olivier Corneille1, Robert L Goldstone, Sarah Queller
1Catholic University of Louvain, Louvain-la-Neuve, Belgium. olivier.corneille@psp.ucl.ac.be
Memory & Cognition
|August 29, 2006
Summary
Membership in reference categories, like club membership, makes exemplars more salient and easier to recognize. This effect diminishes with increased expertise and familiarity with categories.
Area of Science:
- Cognitive Psychology
- Social Psychology
- Human Perception
Background:
- Category representations are influenced by the interrelatedness of categories.
- Prior research indicates asymmetric representations can exist between different categories.
Purpose of the Study:
- To investigate how reference (e.g., club members) and nonreference categories are represented and treated.
- To examine the role of expertise and familiarity in modulating these category representations.
Main Methods:
- Two experiments were conducted to assess exemplar judgments and detection accuracy.
- Participants evaluated similarity between exemplars and detected targets within novel category sets.
Main Results:
- Asymmetric representations were found for reference versus nonreference categories, decreasing with expertise.
- Participants judged reference exemplars as more similar and detected them more readily than nonreference exemplars.
Conclusions:
- A feature asymmetry exists in the representation and treatment of reference and nonreference exemplars.
- Reference category membership acts as a salient feature, enhancing perceived similarity and detection.
Related Concept Videos
01:21Gestalt Principles of Perception
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...
01:12Perceptual Constancy
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
01:12Visual Agnosia
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
01:21Association Areas of the Cortex
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
01:20Parallel Processing
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
01:15Depth Perception and Spatial Vision
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.