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

Egoism and Altruism01:55

Egoism and Altruism

94.6K
Voluntary behavior with the intent to help other people is called prosocial behavior. Why do people help other people? Is personal benefit such as feeling good about oneself the only reason people help one another?
94.6K
Altruism01:03

Altruism

49.8K
Altruistic behaviors are “unselfish” behaviors—those that help another individual at the expense of the individual carrying out the behavior. Despite the negative consequences for the altruistic animal, these behaviors are thought to have evolved for several reasons.
49.8K
Inclusive Fitness00:57

Inclusive Fitness

44.8K
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
44.8K
Self-Serving Bias01:29

Self-Serving Bias

335
Self-serving bias is a cognitive phenomenon in which individuals attribute positive outcomes to internal factors such as their abilities, intelligence, or effort while attributing negative outcomes to external circumstances. This cognitive distortion helps maintain self-esteem but can also impede objective self-assessment.Theoretical Explanations of Self-Serving BiasTwo primary theories explain the self-serving bias: the cognitive explanation and the motivational explanation.The cognitive...
335
Social Proof00:52

Social Proof

32.6K
Social proof is a form of persuasion based on comparison and conformity. People compare their behavior and actions to what others are doing and will change to conform to do what their peers do.
32.6K
Bystander Effect02:09

Bystander Effect

10.5K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
10.5K

You might also read

Related Articles

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

Sort by
Same author

Employing a Coaching Model of Supervision During Physiotherapy Placements: A Qualitative Study of the Practice Educator Experience.

Physiotherapy research international : the journal for researchers and clinicians in physical therapy·2026
Same author

Atraumatic intraneural heterotopic ossification of the common peroneal nerve: illustrative case.

Journal of neurosurgery. Case lessons·2026
Same author

Decline in hip abductor torque, power, and velocity emerges in middle age: age and sex differences across adulthood.

Physiotherapy theory and practice·2026
Same author

British Association of Sexual Health and HIV guidelines on the management of viral hepatitis 2026.

International journal of STD & AIDS·2026
Same author

On the facility of a physiotherapy role-emerging placement scheme in residential care: A qualitative account of the student experience.

Physiotherapy·2026
Same author

Neonatal Stabilization Team: A Critical Team Providing Neonatal Care for Military Families in Guam.

Military medicine·2026
Same journal

Hunting ecology predicts eye arrangements in the modular visual system of spiders.

Current biology : CB·2026
Same journal

Sub-second fluctuations between top-down and bottom-up modes distinguish diverse human brain states.

Current biology : CB·2026
Same journal

Queen bees offload pesticide burden to eggs when social buffering is overwhelmed.

Current biology : CB·2026
Same journal

Pitch selectivity in ferret auditory cortex.

Current biology : CB·2026
Same journal

A cell size-dependent competition between geometry and polarity governs nuclear and spindle positioning in early embryos.

Current biology : CB·2026
Same journal

Trophic cascades drive sustainability in the agricultural heritage rice-fish coculture system.

Current biology : CB·2026
See all related articles

Related Experiment Video

Updated: Apr 14, 2026

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
11:51

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Published on: March 2, 2011

15.8K

Competitive helping in online giving.

Nichola J Raihani1, Sarah Smith2

  • 1Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK.

Current Biology : CB
|April 21, 2015
PubMed
Summary
This summary is machine-generated.

Men donate more to help attractive women when other men also donate, suggesting competitive helping driven by sexual selection. This behavior aims to signal partner quality in a competitive environment.

More Related Videos

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

2.7K
Study of Experimental Organ Donation Models for Lung Transplantation
08:56

Study of Experimental Organ Donation Models for Lung Transplantation

Published on: March 15, 2024

2.2K

Related Experiment Videos

Last Updated: Apr 14, 2026

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
11:51

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making

Published on: March 2, 2011

15.8K
The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

2.7K
Study of Experimental Organ Donation Models for Lung Transplantation
08:56

Study of Experimental Organ Donation Models for Lung Transplantation

Published on: March 15, 2024

2.2K

Area of Science:

  • Evolutionary Psychology
  • Behavioral Economics

Background:

  • Unconditional generosity presents an evolutionary puzzle.
  • Generosity may serve as a costly signal of partner quality in competitive mating environments.

Purpose of the Study:

  • To test the competitive helping hypothesis, which posits individuals compete to be most generous, especially around attractive potential partners.
  • To investigate real-world competitive generosity using online fundraising data.

Main Methods:

  • Analysis of donation data from online fundraising pages.
  • Examining sequential donations as a 'generosity tournament'.
  • Focusing on male donors' responses to large, visible donations, considering fundraiser attractiveness and previous donor gender.

Main Results:

  • Male donors significantly increased donations when responding to large male donations directed at attractive female fundraisers.
  • This competitive response was approximately four times greater than in other conditions (e.g., less attractive fundraisers, female donors).
  • Female donors did not exhibit competitive donation behavior towards attractive male fundraisers.

Conclusions:

  • The study provides real-world evidence for competitive helping, particularly among males.
  • Findings suggest males use displays of competitive generosity in the presence of attractive females.
  • Sexual selection may play a role in explaining human generosity.