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

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

810
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.
810
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

7.3K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
7.3K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

6.2K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.2K
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

3.0K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
3.0K

You might also read

Related Articles

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

Sort by
Same author

Modulation of perceived time caused by stimulus clarity in object recognition.

Attention, perception & psychophysics·2026
Same author

Material discrimination relies on context-dependent active sensing strategies.

Journal of vision·2026
Same author

Pupillary responses to the glare illusion in normal pressure hydrocephalus: insights into network dysfunction and neurodegenerative comorbidities.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·2026
Same author

Enhanced emotion perception for faces behind the observer.

Cognition·2026
Same author

Aftereffects of variance in the perception of facial expressions in crowds.

Vision research·2025
Same author

How we remember music tempo: the role of spontaneous motor tempo in recall and preference.

Frontiers in psychology·2025

Related Experiment Video

Updated: Aug 13, 2025

Pupillometry to Assess Auditory Sensation in Guinea Pigs
09:25

Pupillometry to Assess Auditory Sensation in Guinea Pigs

Published on: January 6, 2023

1.9K

Brightness Perception in World-Centered Coordinates Assessed by Pupillometry.

Novera Istiqomah1,2, Yuya Kinzuka1, Tetsuto Minami1

  • 1Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan.

Behavioral Sciences (Basel, Switzerland)
|January 20, 2023
PubMed
Summary

Subjective brightness perception varies across locations in world-centered coordinates. Pupillary responses, independent of head movement, suggest ecological influences, particularly from the sky and sun, on perceived brightness.

Keywords:
brightness perceptioncognitionpupillometryworld-centered coordinates

More Related Videos

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation
07:26

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

8.2K
Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

4.5K

Related Experiment Videos

Last Updated: Aug 13, 2025

Pupillometry to Assess Auditory Sensation in Guinea Pigs
09:25

Pupillometry to Assess Auditory Sensation in Guinea Pigs

Published on: January 6, 2023

1.9K
Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation
07:26

Assessing Pupil-linked Changes in Locus Coeruleus-mediated Arousal Elicited by Trigeminal Stimulation

Published on: November 26, 2019

8.2K
Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

4.5K

Area of Science:

  • Visual perception
  • Neuroscience
  • Human-computer interaction

Background:

  • Subjective brightness perception varies across peripheral visual fields.
  • Limited data exists on brightness perception in world-centered coordinates.
  • Cognitive factors influence visual perception.

Purpose of the Study:

  • Investigate anisotropy of subjective brightness perception in world-centered coordinates.
  • Examine pupillary responses to stimuli in active and passive virtual reality scenes.
  • Determine ecological advantages of brightness perception in different world-centered locations.

Main Methods:

  • Utilized a virtual reality environment with active (head movement) and passive (no head movement) scenes.
  • Manipulated world-centered coordinates to present stimuli in five locations.
  • Measured pupillary responses to glare and halo stimuli.

Main Results:

  • Brightness perception significantly differed across the five world-centered locations.
  • Pupillary responses indicated variations in brightness perception.
  • Top location stimuli responses were potentially influenced by ecological factors like the sky and sun.

Conclusions:

  • Subjective brightness perception exhibits anisotropy in world-centered coordinates.
  • Pupillary response to brightness stimuli is independent of head movement.
  • Ecological factors may influence brightness perception, particularly in the upward direction.