Featured Research

from universities, journals, and other organizations

Relative length of adults' fingers indicator of verbal aggression: Prenatal exposure to testosterone linked

Date:
November 29, 2012
Source:
International Communication Association
Summary:
A new study links verbal aggression to prenatal testosterone exposure. Scientists used the 2D:4D measure to predict verbal aggression. This study is the first to use this method to examine prenatal testosterone exposure as a determinant of a communication trait.

A new study links verbal aggression to prenatal testosterone exposure. Researchers used the 2D:4D measure, which is the ratio of the length of the second digit (index finger) to the length of the fourth digit (ring finger), to measure prenatal testosterone exposure.
Credit: asife / Fotolia

A new study in the Journal of Communication links verbal aggression to prenatal testosterone exposure. The lead researcher, at University at Buffalo -- The State University of New York, used the 2D:4D measure to predict verbal aggression. This study is the first to use this method to examine prenatal testosterone exposure as a determinant of a communication trait.

Related Articles


Allison Z. Shaw, University at Buffalo -- The State University of New York, Michael R. Kotowski, University of Tennessee, and Franklin J. Boster and Timothy R. Levine, Michigan State University, predicted that a neuroendocrine factor, prenatal testosterone, would lead to more verbal aggression. In order to investigate this, Shaw and colleagues used the 2D:4D measure, which is the ratio of the length of the second digit (index finger) to the length of the fourth digit (ring finger), to measure prenatal testosterone exposure. This method involved measuring each finger from where it meets the palm of the hand to the tip. In addition, each hand was photocopied individually with the palm flat, facing downward, with the fingers splayed naturally, and the same measures were made from the photocopy. Subjects then filled out the Verbal Aggression scale as well as the HEXACO Personality Inventory and the Argumentativeness scale.

The findings suggested that both men and women with smaller 2D:4D ratios self-reported themselves to be more verbally aggressive. Although a small degree of verbal aggression may be beneficial for a person (e.g., being able to stand up for yourself if attacked), higher degrees of verbal aggression have been shown to be detrimental to one's personal life (e.g., problems maintaining close personal relationships, loss of job).

"Understanding the causes of verbal aggression, both biological and social, will allow therapists to have a greater understanding of how to work with individuals who may be more prone to use verbal aggression. What the findings of the current study suggest is that verbal aggression may result from a number of cognitive and affective decisions that are made throughout an interaction," Shaw said.

"This research is the future of communication science where studies examine biological bases of behavior to understand and predict fundamental human communication processes, such as verbal aggressiveness." Said Thomas Feeley, professor and chair of the Department of Communication at the University at Buffalo -- The State University of New York. "With multiple observations of a given relationship, there is greater external validity and confidence in the study findings."


Story Source:

The above story is based on materials provided by International Communication Association. Note: Materials may be edited for content and length.


Journal Reference:

  1. Allison Z. Shaw, Michael R. Kotowski, Franklin J. Boster, Timothy R. Levine. The Effect of Prenatal Sex Hormones on the Development of Verbal Aggression. Journal of Communication, 2012; 62 (5): 778 DOI: 10.1111/j.1460-2466.2012.01665.x

Cite This Page:

International Communication Association. "Relative length of adults' fingers indicator of verbal aggression: Prenatal exposure to testosterone linked." ScienceDaily. ScienceDaily, 29 November 2012. <www.sciencedaily.com/releases/2012/11/121129093703.htm>.
International Communication Association. (2012, November 29). Relative length of adults' fingers indicator of verbal aggression: Prenatal exposure to testosterone linked. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2012/11/121129093703.htm
International Communication Association. "Relative length of adults' fingers indicator of verbal aggression: Prenatal exposure to testosterone linked." ScienceDaily. www.sciencedaily.com/releases/2012/11/121129093703.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Prenatal Exposure To Pollution Might Increase Autism Risk

Prenatal Exposure To Pollution Might Increase Autism Risk

Newsy (Dec. 18, 2014) Harvard researchers found children whose mothers were exposed to high pollution levels in the third trimester were twice as likely to develop autism. Video provided by Newsy
Powered by NewsLook.com
Yoga Could Be As Beneficial For The Heart As Walking, Biking

Yoga Could Be As Beneficial For The Heart As Walking, Biking

Newsy (Dec. 17, 2014) Yoga can help your weight, blood pressure, cholesterol and heart just as much as biking and walking does, a new study suggests. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins