Limits...
No Evidence of Association between Toxoplasma gondii Infection and Financial Risk Taking in Females.

Lanchava L, Carlson K, Šebánková B, Flegr J, Nave G - PLoS ONE (2015)

Bottom Line: Past research linked Toxoplasma gondii (TG) infection in humans with neurological and mental disorders (e.g., schizophrenia, Alzheimer's disease and attention disorders), irregularities of the dopaminergic and testosterone system, and increased likelihood of being involved in traffic accidents.We estimate each subject's risk attitude and loss aversion using an experimental economic task involving real monetary incentives.We find no significant evidence that either measure of decision-making is associated with TG infection.

View Article: PubMed Central - PubMed

Affiliation: Center for Economic Research and Graduate Education and Economics Institute (CERGE-EI), Prague, Czech Republic.

ABSTRACT

Background: Past research linked Toxoplasma gondii (TG) infection in humans with neurological and mental disorders (e.g., schizophrenia, Alzheimer's disease and attention disorders), irregularities of the dopaminergic and testosterone system, and increased likelihood of being involved in traffic accidents.

Methodology/principal findings: We test for an association between TG infection and financial decision-making (DM) using a case-control design in a sample of female Czech students (n = 79). We estimate each subject's risk attitude and loss aversion using an experimental economic task involving real monetary incentives. We find no significant evidence that either measure of decision-making is associated with TG infection.

Conclusion: We were unable to find evidence of an association between TG infection and financial decision-making in females.

No MeSH data available.


Related in: MedlinePlus

Risk task: A sample screenshot from the study.The two numbers on the left represent the gamble’s possible gain and loss amounts (Top and Bottom, respectively). The number on the right represents the guaranteed amount. Participants had to indicate which option they wanted to choose by clicking the corresponding button.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4581702&req=5

pone.0136716.g001: Risk task: A sample screenshot from the study.The two numbers on the left represent the gamble’s possible gain and loss amounts (Top and Bottom, respectively). The number on the right represents the guaranteed amount. Participants had to indicate which option they wanted to choose by clicking the corresponding button.

Mentions: Subjects were endowed with 250 CZK and made a series of 140 forced choices between different pairs of monetary gambles (S3 Table in SI lists the entire set of pay-offs used). Each pair contained a sure option (SO) which paid S CZK for sure, and a risky option (RO), which delivered a gain of G CZK and a loss L CZK each with an equal probability of 50% (Fig 1). The task was used to measure risk attitudes and loss aversion in previous studies [56,57]. Choices were presented in four pseudo-randomly ordered blocks of 35 decisions, such that block order was counterbalanced across participants. Gamble positions (left or right) and gamble outcomes were randomized across participant. Subjects received no immediate feedback about the lottery outcomes and were informed that at the end of the experiment, one trial would be selected at random and the payoff associated with the selected option would be implemented. The payoffs and initial endowment of 250 CZK were such that no subject could end with negative earnings.


No Evidence of Association between Toxoplasma gondii Infection and Financial Risk Taking in Females.

Lanchava L, Carlson K, Šebánková B, Flegr J, Nave G - PLoS ONE (2015)

Risk task: A sample screenshot from the study.The two numbers on the left represent the gamble’s possible gain and loss amounts (Top and Bottom, respectively). The number on the right represents the guaranteed amount. Participants had to indicate which option they wanted to choose by clicking the corresponding button.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4581702&req=5

pone.0136716.g001: Risk task: A sample screenshot from the study.The two numbers on the left represent the gamble’s possible gain and loss amounts (Top and Bottom, respectively). The number on the right represents the guaranteed amount. Participants had to indicate which option they wanted to choose by clicking the corresponding button.
Mentions: Subjects were endowed with 250 CZK and made a series of 140 forced choices between different pairs of monetary gambles (S3 Table in SI lists the entire set of pay-offs used). Each pair contained a sure option (SO) which paid S CZK for sure, and a risky option (RO), which delivered a gain of G CZK and a loss L CZK each with an equal probability of 50% (Fig 1). The task was used to measure risk attitudes and loss aversion in previous studies [56,57]. Choices were presented in four pseudo-randomly ordered blocks of 35 decisions, such that block order was counterbalanced across participants. Gamble positions (left or right) and gamble outcomes were randomized across participant. Subjects received no immediate feedback about the lottery outcomes and were informed that at the end of the experiment, one trial would be selected at random and the payoff associated with the selected option would be implemented. The payoffs and initial endowment of 250 CZK were such that no subject could end with negative earnings.

Bottom Line: Past research linked Toxoplasma gondii (TG) infection in humans with neurological and mental disorders (e.g., schizophrenia, Alzheimer's disease and attention disorders), irregularities of the dopaminergic and testosterone system, and increased likelihood of being involved in traffic accidents.We estimate each subject's risk attitude and loss aversion using an experimental economic task involving real monetary incentives.We find no significant evidence that either measure of decision-making is associated with TG infection.

View Article: PubMed Central - PubMed

Affiliation: Center for Economic Research and Graduate Education and Economics Institute (CERGE-EI), Prague, Czech Republic.

ABSTRACT

Background: Past research linked Toxoplasma gondii (TG) infection in humans with neurological and mental disorders (e.g., schizophrenia, Alzheimer's disease and attention disorders), irregularities of the dopaminergic and testosterone system, and increased likelihood of being involved in traffic accidents.

Methodology/principal findings: We test for an association between TG infection and financial decision-making (DM) using a case-control design in a sample of female Czech students (n = 79). We estimate each subject's risk attitude and loss aversion using an experimental economic task involving real monetary incentives. We find no significant evidence that either measure of decision-making is associated with TG infection.

Conclusion: We were unable to find evidence of an association between TG infection and financial decision-making in females.

No MeSH data available.


Related in: MedlinePlus