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

Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Visual Agnosia01:12

Visual 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"...
Color Vision01:24

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.

You might also read

Related Articles

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

Sort by
Same author

Distinct hippocampal subfield representational shifts underlie category exception learning.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same author

Investigating the analytical robustness of the social and behavioural sciences.

Nature·2026
Same author

A large positive hysteresis effect for scene categories.

Journal of experimental psychology. Human perception and performance·2026
Same author

Distinct Hippocampal Mechanisms Support Concept Formation and Updating.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same author

Menstrual cycle modulates the effect of BDNF Val66Met variant on category learning.

Biology of sex differences·2026
Same author

Distinct contributions of hippocampal pathways in learning regularities and exceptions revealed by functional footprints.

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

Characterizing facilitators and barriers to Hypoglycemic Confidence among patients with diabetes: a qualitative descriptive study.

Frontiers in psychology·2026
Same journal

Psychometric evaluation and refinement of the 7DHW questionnaire for the German population.

Frontiers in psychology·2026
Same journal

Editorial: Ethical leadership and workplace equity: mediating and moderating mechanisms in emotional labor and well-being.

Frontiers in psychology·2026
Same journal

How organizational support promotes teacher professional recognition: a perspective on teachers' autonomous learning and teaching abilities.

Frontiers in psychology·2026
Same journal

From "performance competition arena" to "psychological exemption zone": psychological safety mechanisms in reverse mobility.

Frontiers in psychology·2026
Same journal

General and sport-specific mental toughness in university students: associations with personality traits and physical activity.

Frontiers in psychology·2026
See all related articles

Related Experiment Video

Updated: May 30, 2026

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

The timing of visual object categorization.

Michael L Mack1, Thomas J Palmeri

  • 1Department of Psychology, The University of Texas at Austin Austin, TX, USA.

Frontiers in Psychology
|August 4, 2011
PubMed
Summary
This summary is machine-generated.

Object categorization speed varies by abstraction level. This study contrasts two theories on why some categorizations are faster, impacting visual recognition models.

Keywords:
computational modelingobject categorizationobject recognitionreaction timestemporal dynamicstime course

More Related Videos

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
05:35

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

Published on: April 19, 2017

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Related Experiment Videos

Last Updated: May 30, 2026

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
05:35

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

Published on: April 19, 2017

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Area of Science:

  • Cognitive Psychology
  • Computational Neuroscience
  • Computer Vision

Background:

  • Object categorization occurs at multiple abstraction levels, from broad (natural vs. man-made) to specific (Northern Cardinal).
  • Understanding the timing of these categorizations is crucial for modeling visual recognition.

Purpose of the Study:

  • To contrast two theoretical perspectives on the timing of object categorization across different abstraction levels.
  • To explore how experience influences the temporal dynamics of perceptual decisions in object recognition.

Main Methods:

  • Reviewing existing models of object categorization.
  • Analyzing the temporal dynamics of categorization decisions.
  • Comparing hierarchical processing versus feature availability accounts of categorization timing.

Main Results:

  • Two distinct accounts of categorization timing were contrasted: one based on processing hierarchy, the other on perceptual evidence availability.
  • The study highlights that 'fast' categorization does not necessarily imply 'first' in a processing sequence.

Conclusions:

  • The temporal dynamics of object categorization at various abstraction levels are key to developing robust computational models of visual object recognition.
  • Further research into these temporal dynamics can refine our understanding of human and machine visual perception.