Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Assessment of the Gastrointestinal System II: Health Perception Pattern01:29

Assessment of the Gastrointestinal System II: Health Perception Pattern

500
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
500
Symmetry01:26

Symmetry

218
The equation of an ellipse centered at the origin defines all points whose distances from the center maintain a constant ratio between the horizontal and vertical axes. This equation results in a smooth, closed curve that extends further along the x-axis than the y-axis, giving it a horizontal orientation. Such an ellipse demonstrates three kinds of symmetry: across the x-axis, across the y-axis, and about the origin. These symmetries are essential in understanding the graph's structure and...
218
Subliminal Perception01:15

Subliminal Perception

794
Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
794
Factors Affecting Perception01:25

Factors Affecting Perception

2.8K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
2.8K
Gauss's Law: Planar Symmetry01:27

Gauss's Law: Planar Symmetry

9.6K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
9.6K
Perception01:28

Perception

1.2K
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Brain Response to Reflectional Symmetry Is Not Uniquely Preattentive.

The European journal of neuroscience·2026
Same author

Corrigendum to 'Russian blues reveal the limits of language influencing colour discrimination' [Cognition 201, August 2020, 104281].

Cognition·2026
Same author

Cognition does not automatically influence perception: Evidence from neural encoding of colors belonging to different categories.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

At the roots of Plant Awareness Disparity (PAD): Semantic processing and numerosity perception.

PloS one·2026
Same author

Conditions for view invariance in the neural response to symmetry revisited: The case of real and drawn perspective.

Cortex; a journal devoted to the study of the nervous system and behavior·2026
Same author

Consistency and changes in eye movements during static, dynamic, and audio-visual emotion processing.

Perception·2026

Related Experiment Video

Updated: Feb 6, 2026

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.6K

Symmetry perception for patterns defined by color and luminance.

Jasna Martinovic1, Ben J Jennings2, Alexis D J Makin3

  • 1School of Psychology, University of Aberdeen, Aberdeen, UK.

Journal of Vision
|August 12, 2018
PubMed
Summary

Visual symmetry perception uses low-level cues at threshold but relies on broader neural networks at higher contrasts. This suggests early visual processing influences symmetry detection, but this effect diminishes under normal viewing conditions.

More Related Videos

Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments
09:03

Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments

Published on: May 21, 2019

10.1K
Cell Patterning on Photolithographically Defined Parylene-C: SiO2 Substrates
07:19

Cell Patterning on Photolithographically Defined Parylene-C: SiO2 Substrates

Published on: March 7, 2014

13.8K

Related Experiment Videos

Last Updated: Feb 6, 2026

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.6K
Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments
09:03

Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments

Published on: May 21, 2019

10.1K
Cell Patterning on Photolithographically Defined Parylene-C: SiO2 Substrates
07:19

Cell Patterning on Photolithographically Defined Parylene-C: SiO2 Substrates

Published on: March 7, 2014

13.8K

Area of Science:

  • Visual neuroscience
  • Perceptual psychology
  • Cognitive science

Background:

  • Symmetry perception is a rapid cognitive process.
  • It involves both low-level and high-level neural mechanisms.
  • The specific contribution of low-level visual processing remains debated.

Purpose of the Study:

  • To investigate the influence of early low-level visual mechanisms on symmetry perception.
  • To differentiate the roles of color and luminance contrast in symmetry detection.
  • To examine symmetry processing across different contrast levels using psychophysics and event-related potentials (ERPs).

Main Methods:

  • Conducted psychophysical experiments with isoluminant, achromatic, and combined color/luminance patterns at individual symmetry-discrimination thresholds.
  • Utilized event-related potential (ERP) recordings at high contrasts to assess suprathreshold processing.
  • Analyzed behavioral biases and ERP components, specifically sustained posterior negativity.

Main Results:

  • At threshold, isoluminant stimuli biased perception toward symmetry, while achromatic stimuli introduced an opposite bias.
  • Color contrast provided low-frequency information beneficial for symmetry detection, whereas luminance contrast aided detail detection.
  • Symmetry-sensitive ERPs were observed across all conditions, but interactions between symmetry and contrast type were absent at high contrasts.

Conclusions:

  • Low-level visual mechanisms significantly contribute to symmetry perception at the discrimination threshold.
  • These low-level influences diminish at suprathreshold levels.
  • Under typical viewing conditions, symmetry perception recruits a broad cortical network less constrained by initial low-level inputs.