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Related Concept Videos

Social Loafing01:37

Social Loafing

Another way in which a group presence can affect performance is social loafing—the exertion of less effort by a person working together with a group. Social loafing occurs when our individual performance cannot be evaluated separately from the group. Thus, group performance declines on easy tasks (Karau & Williams, 1993). Essentially individual group members loaf and let other group members pick up the slack. Because each individual’s efforts cannot be evaluated, individuals become less...
Emission Spectra02:39

Emission Spectra

When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
Channel Rhodopsins01:11

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
The DNA Helix01:07

The DNA Helix

Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
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.

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Related Experiment Video

Updated: Jul 4, 2026

Electrophysiological Measurements and Analysis of Nociception in Human Infants
09:18

Electrophysiological Measurements and Analysis of Nociception in Human Infants

Published on: December 20, 2011

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L. Rowell Huesmann (1943-2025).

Eric F Dubow1, Paul Boxer2

  • 1Bowling Green State University.

The American Psychologist
|April 2, 2026
PubMed
Summary

L. Rowell Huesmann

Area of Science:

  • Psychology
  • Communication Studies

Background:

  • Professor Huesmann was a recognized scholar in understanding aggression.
  • His work focused on the causes and transmission of aggressive behavior.

Purpose of the Study:

  • To summarize the scholarly contributions of L. Rowell Huesmann.
  • To highlight his integrated social-cognitive model of aggression.

Main Methods:

  • Development of an integrated social-cognitive model.
  • Longitudinal research on aggression development and transmission.

Main Results:

  • The model explains aggression learning from childhood.
  • Aggression transmission across generations was elucidated.

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Last Updated: Jul 4, 2026

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Electrophysiological Measurements and Analysis of Nociception in Human Infants

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Conclusions:

  • Professor Huesmann significantly advanced the understanding of aggression.
  • His legacy includes mentoring future researchers in the field.