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Uniwersytet SWPS - Logo

Psychological and Biological sources of risk aversion

Psychological and Biological sources of risk aversion

principal investigator
Szymon Wichary

psycholog, specjalista z zakresu neuroekonomii, prowadzi badania nad psychologicznymi i biologicznymi mechanizmami podejmowania decyzji

project value: PLN 536,400
funding source : National Science Center
discipline: psychology
research center: Institute of Psychology
location: Wrocław
duration: 2012 2013 2014 2015 2016

Are men bigger risk takers than women? The research project, led by Szymon Wichary, Ph.D., provides data on personal differences and their impact risk taking and risk aversion. Combining data about the hormonal, neurophysiological and psychological underpinnings of risk seeking and avoidance, both in men and women, contributes to precise description of the relation between physiological mechanisms and behavior.

 

Research Project

Psychological and biological sources of risk aversion

 

 

 

Research Unit
UNI SWPS english
Grant Amount
536 400 PLN
Funding Source
NCN logo poziom en2

Duration of Research Project: 2012-2016


Are men bigger risk takers than women? The research project, led by Szymon Wichary, Ph.D., provides data on personal differences and their impact risk taking and risk aversion. Combining data about the hormonal, neurophysiological and psychological underpinnings of risk seeking and avoidance, both in men and women, contributes to precise description of the relation between physiological mechanisms and behavior.

Research Objectives

Psychological research suggests that individuals vary greatly in the degree they are willing to take risks. Despite the intensive research on risk taking, the neurophysiological mechanisms of risk behavior are still poorly understood. Moreover, most studies on this topic are conducted on men and focus on risk seeking. We believe that in order to redress this balance, it is important to explore the mechanisms of risk aversion, with a particular focus on women. This project aimed to explore the psychological and physiological antecedents of risk aversion. More specifically, we aimed to link differences in hormone levels with individual risk preferences, taking into account differences in temperament, affect and cognition.  Other studies show that reward sensitivity is linked to testosterone levels, and we hope that our further analyses will be able to support this link and extend this analysis to other hormones that we studied, e.g. cortisol and vasopressin.

Methodology

In this project we conducted a series of four larger studies.

In Study 1 we adapted research methods to study risk taking and conducted a series of small behavioral studies aimed at exploring the relationship between risk attitudes and cognitive, affective and temperamental characteristics. The main objective of Studies 2 and 3 was to study relations between risk taking and hormone levels in men and women.

The levels of reproductive hormones estradiol and testosterone, as well as the levels of oxytocin, vasopressin and cortisol were measured in multiple samples taken during the entire menstrual cycles (in women, Study 2) and during one month sampling period (in men, Study 3). A follow-up Study 4 addressed the issue of sex differences in risk taking in relation to reproductive hormone levels and hormonal and electrophysiological markers of stress response.

In addition, we used computational modeling to understand better the sources of the behavioral effects that we observed.

Partners

Brzezicka, Aneta
Bio
Tak
Permanent employee
Tak
Role in the Faculty
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Role in the Department
{"funkcja-w-katedrze0":{"Funkcja":"","\u0141\u0105cznik":"","Nazwa w mianowniku":"Department of Biological Psychology"}}
Role in the Institute
{"funkcja-w-instytucie0":{"Funkcja":"","\u0141\u0105cznik":"","Nazwa w mianowniku":"Institute of Psychology"}}
Role in the Research Center
{"funkcja-w-centrum0":{"Funkcja":"Head","\u0141\u0105cznik":"of the","Nazwa w mianowniku":"Neurocognitive Research Center (NCRC)"}}
Specialization
neuroscientist and cognitive psychologist
First and last name
Aneta Brzezicka
Academic degree or title
Ph.D. / Associate Professor
City
warszawa
Discipline
psychology
Position
profesor uczelni
Institute
Neurocognitive Research Center (NCRC)
Faculty
Array
Ph.D. / Associate Professor Aneta Brzezickaneuroscientist and cognitive psychologist
Ph.D.
Laurence Fiddick

Lakehead University, Orillia, Ontario, Canada

Ph.D.
Bettina von Helversen

University of Zurich, Switzerland

Ph.D.
Anna Ziomkiewicz-Wichary

Department of Anthropology, Polish Academy of Sciences, Wrocław

Results

The data analyzed so far allowed us to conclude that the often observed relationship between gender and risk – women less willing to take risks than men – is not universal.

In a study on prisoners and non-prisoners, in a sample with balanced gender proportions, we observed that female prisoners and equally or even more willing to take risks as male prisoners and men from the general population. In addition to behavioral data, we used computational modeling which allowed us to elucidate the possible psychological sources of the observed effects.

Female prisoners, as well as male prisoners and the men from the general population, were characterized by high sensitivity to rewards when making decisions under risk, possibly neglecting the negative consequences of their behavior.

Publications

 

  • Wichary, S., Pachur, T., Li, M. (2015). Risk-taking tendencies in prisoners and non-prisoners: Does gender matter? Journal of Behavioral Decision Making, 28, 504-514.