Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Alpha males take greater risks: Study links finger length to behavior

10.11.2010
Concordia University investigation published in Personality and Individual Differences

Potential investors might wish to examine the fingers of their financial advisor prior to signing over any savings.

A new study from Concordia University has found the length between the second and fourth finger is an indicator of high levels of prenatal testosterone, risk-taking and potential financial success in men. The findings, published in the journal of Personality and Individual Differences, suggest that alpha males may take greater risks in relationships, on the squash court and in the financial market.

"Previous studies have linked high testosterone levels with risky behaviour and financial success," says senior researcher Gad Saad, Concordia University Research Chair in Evolutionary Behavioral Sciences and Darwinian Consumption as well as a marketing professor at the John Molson School of Business. "We investigated the relationship between prenatal testosterone and various risk proclivities. Our findings show an association between high testosterone and risk-taking among males in three domains: recreational, social and financial."

"Since women tend to be attracted to men who are fit, assertive and rich, men are apt to take risks with sports, people and money to be attractive to potential mates. What's interesting is that this tendency is influenced by testosterone exposure – more testosterone in the womb can lead to more risks in the rink, the bar and the trading floor in later in life," says first author and Concordia doctoral student, Eric Stenstrom.

Link only observed in men

Saad and his team analyzed risk-taking among 413 male and female students using a survey. "Prenatal testosterone exposure not only influences fetal brain development," adds study co-author and graduate student, Zack Mendenhall, "but it also slows the growth of the index finger relative to the sum of the four fingers excluding the thumb."

The change in finger length produced by testosterone provides a handy measure of prenatal testosterone exposure. The study compared the length of the index finger with all four digits (known as the rel2 ratio) and found that those with lower ratios were more likely to engage in risk-taking. These findings were further confirmed by the additional measurement of the ratio between the index and ring finger. These correlations were only observed in men.

"A possible explanation for the null effects in women is that they do not engage in risky behaviour as a mating signal, whereas men do," says Professor Saad.

About the study:

Testosterone and domain-specific risk: Digit ratios (2D:4D and rel2) as predictors of recreational, financial, and social risk-taking behaviors, published in the journal Personality and Individual Differences, was authored by Eric Stenstrom, Gad Saad, Marcelo V. Nepomuceno and Zack Mendenhall from Concordia University.

On the Web:

Concordia University: www.concordia.ca
Concordia's John Molson School of Business: http://johnmolson.concordia.ca
Cited Personality and Individual Differences study: www.elsevier.com/wps/find/journaldescription.cws_home/603/

description#description

Media contact:
Sylvain-Jacques Desjardins
Senior advisor, media relations
University Communications Services
Concordia University
Phone: 514-848-2424, ext. 5068
Email: s-j.desjardins@concordia.ca
Twitter: http://twitter.com/concordianews
Concordia news: http://now.concordia.ca

Sylvain-Jacques Desjardins | EurekAlert!
Further information:
http://www.concordia.ca

More articles from Studies and Analyses:

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

nachricht Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>