Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The de Broglie Wavelength

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...

Role of Affect in Interpersonal Attraction

Role of Affect in Interpersonal Attraction

Affect plays a crucial role in shaping interpersonal evaluations and perceptions. Emotions influence how individuals judge and respond to others, often determining whether interactions are viewed positively or negatively. This effect can manifest directly through interactions with the person in question or indirectly via associations with unrelated emotional experiences.Direct Effects of Affect on AttractionAffect directly influences interpersonal attraction when a person’s behavior...

The Influence of Affect on Cognition

The Influence of Affect on Cognition

Positive affect significantly influences cognitive processes, including evaluation, memory, creativity, and social judgments. Compared to negative affect, positive emotional states promote more favorable interpretations of stimuli, cognitive flexibility, and heuristic processing. These effects highlight emotions' powerful role in shaping how individuals perceive, remember, and interact with the world.Influence on Evaluation and AttributionWhen individuals experience positive affect, they are...

The Influence of Cognition on Affect

The Influence of Cognition on Affect

Cognition plays a pivotal role in shaping emotional experiences, as demonstrated by Schachter and Singer’s two-factor theory of emotion. According to this model, emotion arises from a combination of physiological arousal and cognitive interpretation. The body’s physiological response to stimuli is ambiguous and only gains emotional significance through cognitive labeling. For instance, an increased heart rate and adrenaline surge while standing near an attractive person may be...

Background and Environment Affect Phenotype

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...

$Influence of Earth's Curvature and Atmospheric Refraction on Leveling$ 01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...

You might also read

Related Articles

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

Sort by

Same author

Development and characterization of monoclonal antibodies to spring viraemia of carp virus.

Veterinary immunology and immunopathology·2008

Same author

Electrophysiological characterization of a novel Kv channel blocker N,N'-[oxybis(2,1-ethanediyloxy-2,1-ethanediyl) ]bis(4-methyl)-benzenesulfonamide found in virtual screening.

Acta pharmacologica Sinica·2008

Same author

Cloning and characterization of an rRNA methyltransferase from Sorangium cellulosum.

Biochemical and biophysical research communications·2008

Same author

Reconstruction of anophthalmic orbits and contracted eye sockets with microvascular radial forearm free flaps.

Ophthalmic plastic and reconstructive surgery·2008

Same author

Using low intensity ultrasound to improve the efficiency of biological phosphorus removal.

Ultrasonics sonochemistry·2008

Same author

[Study on the spectrum of the flocculent conformation of polymer ferric sulfate flocculants].

Guang pu xue yu guang pu fen xi = Guang pu·2008

Search research articles

Related Experiment Video

Updated: Jan 24, 2026

Cochlear Implantation in the Guinea Pig

Cochlear Implantation in the Guinea Pig

Published on: June 15, 2018

Wavelength Defocus and Temporal Sensitivity Affect Refractive Development in Guinea Pigs.

Tian Tian^1,2,3, Leilei Zou^1,2,3, Sujia Wu^1,2,3

¹Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.

Investigative Ophthalmology & Visual Science

|May 21, 2019

Summary

Environmental light wavelength and temporal frequency guide eye growth for emmetropization. The retina integrates these signals, with low frequencies allowing wavelength defocus cues and high frequencies weakening this signal.

More Related Videos

Author Spotlight: Extraction of Guinea Pig Round Window Membrane to Facilitate Inner Ear Drug Delivery Research

Author Spotlight: Extraction of Guinea Pig Round Window Membrane to Facilitate Inner Ear Drug Delivery Research

Published on: February 23, 2024

A Revised Surgical Approach to Induce Endolymphatic Hydrops in the Guinea Pig

A Revised Surgical Approach to Induce Endolymphatic Hydrops in the Guinea Pig

Published on: June 4, 2020

Related Experiment Videos

Last Updated: Jan 24, 2026

Cochlear Implantation in the Guinea Pig

Cochlear Implantation in the Guinea Pig

Published on: June 15, 2018

Author Spotlight: Extraction of Guinea Pig Round Window Membrane to Facilitate Inner Ear Drug Delivery Research

Author Spotlight: Extraction of Guinea Pig Round Window Membrane to Facilitate Inner Ear Drug Delivery Research

Published on: February 23, 2024

A Revised Surgical Approach to Induce Endolymphatic Hydrops in the Guinea Pig

A Revised Surgical Approach to Induce Endolymphatic Hydrops in the Guinea Pig

Published on: June 4, 2020

Area of Science:

Ophthalmology
Vision Science
Developmental Biology

Background:

Environmental light is crucial for emmetropization, the process of eye growth regulation.
The retina's integration of light signals influences refractive development.

Purpose of the Study:

To investigate how the retina integrates wavelength and temporal signals of environmental light.
To understand the role of light cues in regulating eye emmetropization.

Main Methods:

Guinea pigs (n=220) were exposed to white, green, or blue light at steady, 0.5 Hz, or 20 Hz for 8 weeks.
Refraction, axial length, and corneal curvature were measured bi-weekly.

Main Results:

White light at 0.5 Hz induced myopia and increased axial length compared to steady or 20 Hz.
Green light at low frequencies (0.5 Hz) caused myopia, while blue light induced hyperopia.
High temporal frequencies (20 Hz) altered refractive outcomes, with green light showing hyperopic shift and blue light a myopic shift compared to steady light.

Conclusions:

The eye utilizes both light wavelength and temporal frequency for emmetropization.
Interactions between wavelength and frequency provide distinct cues for eye growth regulation.
Low temporal frequencies enable wavelength-specific defocus cues, which are diminished at high frequencies.