• Publications
  • Influence
The bystander-effect: a meta-analytic review on bystander intervention in dangerous and non-dangerous emergencies.
Research on bystander intervention has produced a great number of studies showing that the presence of other people in a critical situation reduces the likelihood that an individual will help. As theExpand
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Media violence and the self: The impact of personalized gaming characters in aggressive video games on aggressive behavior
A recent development in video games is that players can design and personalize their own in-game characters. It was predicted that this innovation could lead to elevations in the intensity of theExpand
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The Racing-Game Effect: Why Do Video Racing Games Increase Risk-Taking Inclinations?
The present studies investigated why video racing games increase players’ risk-taking inclinations. Four studies reveal that playing video racing games increases risk taking in a subsequent simulatedExpand
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The effects of risk-glorifying media exposure on risk-positive cognitions, emotions, and behaviors: a meta-analytic review.
In recent years, there has been a surge in the quantity of media content that glorifies risk-taking behavior, such as risky driving, extreme sports, or binge drinking. The authors conducted aExpand
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Ego Depletion Increases Risk-Taking
ABSTRACT We investigated how the availability of self-control resources affects risk-taking inclinations and behaviors. We proposed that risk-taking often occurs from suboptimal decision processesExpand
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Civil Courage and Helping Behavior
The present research reveals that people's implicit theories of civil courage and helping behavior are clearly distinguishable. In three studies, it was shown that situations requiring civil courageExpand
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Selective exposure and decision framing: The impact of gain and loss framing on confirmatory information search after decisions☆
When people make decisions, they often prefer to receive information that supports rather than conflicts with their decision. To date, this effect has mainly been investigated in the context ofExpand
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Romantic motives and risk-taking: an evolutionary approach
Risk-taking behavior is puzzling insofar as it may involve considerable losses (such as increased mortality rates). The present research advances an evolutionary account of risk-taking behavior inExpand
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Leadership and Information Processing
There is a large body of research showing that people selectively prefer information that supports their decisions and opinions, and avoid conflicting information (selective information processing).Expand
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Coping With Terrorism: The Impact of Increased Salience of Terrorism on Mood and Self-Efficacy of Intrinsically Religious and Nonreligious People
It was hypothesized that intrinsic religiousness helps to cope with increased salience of terrorism. Intrinsically religious and nonreligious participants were told that it is highly probable orExpand
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