Christine Anderl

People increasingly use large language model (LLM)-based conversational agents to obtain information. However, the information these models provide is not always factually accurate. Thus, it is critical to understand what helps users adequately assess the credibility of the provided information. Here, we report the results of two preregistered expe...

The literature on individual differences constitutes a key area of research in organizational sciences, such as organizational psychology, organizational behavior, and behavioral strategy. In line with this, there is a vast and further growing body of knowledge within this literature. This volume aims to provide an accessible overview of the academ...

People increasingly use large language model (LLM)-based conversational agents to obtain information. However, the information these models provide is not always factually accurate. Thus, it is critical to understand what helps users adequately assess the credibility of the provided information. Here, we report the results of two preregistered expe...

Being aware of others’ expertise is essential for knowledge exchange. Browsing social media has been shown to foster such awareness, often referred to as “ambient awareness”. However, the underlying psychological mechanism has not yet been established. In a series of three preregistered experiments (total N = 445), we tested the notions that indivi...

With the emergence of the SARS-CoV-2 pandemic, videoconferencing was rapidly adopted. However, individuals frequently decide to keep their cameras off during videoconferences. Currently, the reasons for this are not well modeled, and neither are the social effects this decision has. The present research addresses the question whether camera use can...

Previous findings on the relationship between smartphone use and well-being have been mixed. This may be partially due to a reliance on cross-sectional study designs and self-reported smartphone usage. In the current study, we collected screen time data by directly tracking participants’ (N = 325, ages 14−80 years, 58% women) smartphone usage over...

Since the outbreak of the Covid-19 pandemic, the use of video conferences in professional settings increased rapidly. Here, we examine how individual and situational characteristics jointly predict active behavior in video conferences (i.e., activating one’s webcam, small talk, contacting other attendees) between strangers. We focus on external net...

Background The incidence of depression in human females rises steadily throughout adolescence, a critical period of pubertal maturation marked by increasing levels of gonadal hormones including estrogens and progesterone. These gonadal hormones play a central role in social and emotional development and may also contribute to the increased occurren...

Background Because of the widespread use of oral contraceptives (OCs) and the devastating effects of depression both on an individual and a societal level, it is crucial to understand the nature of the previously reported relationship between OC use and depression risk. Insight into the impact of analytical choices on the association is important w...

Most studies investigating interindividual differences in the context of social decision making have focused on the decision maker. Considerably less empirical attention has been paid to interindividual differences in how recipients react both affectively and behaviorally. In two preregistered studies (total N = 667), we examined whether heightened...

Introduction Previously reported associations between oral contraceptives (OCs) use and depression have been conflicting. Insight into the impact of analytical choices on the association may help to reconcile previous heterogeneous findings. Objectives We aimed to examine the association between adolescent OC use and subsequent depression risk in...

Background Previous evidence suggests that use of oral contraceptives (OCs), especially during adolescence, may increase women's vulnerability to depression in the short term. Here, we investigate whether women who had first used OC in adolescence show an increased prevalence of depression in the long term. Methods We examined 1,236 women in the U...

Facial Width-to-Height Ratio (fWHR) has been linked with dominant and aggressive behavior in human males. We show here that on portrait photographs published online, chief executive officers (CEOs) of companies listed in the Dow Jones stock market index and the Deutscher Aktienindex have a higher-than-normal fWHR, which also correlates positively w...

Source data for all analyses. (XLSX)

Background and objectives: Social anxiety is known to impair interpersonal relationships. These impairments are thought to partly arise from difficulties to engage in affiliative interactions with others, such as sharing favors or reciprocating prosocial acts. Here, we examined whether individuals high compared to low in social anxiety differ in g...

Depression is the leading cause of disability and suicide deaths worldwide. Beginning in adolescence, women are twice as likely as men to develop depression and converging evidence suggests that gonadal hormones contribute to these sex differences. Recent findings indicate that current use of oral contraceptives (OC) is associated with increased vu...

Facial width-to-height ratio (fWHR), a putative marker of pubertal testosterone action, has been reliably linked with various facets of unsociable behavior in men. In order to elucidate the underlying mechanisms, a recent study by Geniole and colleagues (2014) has provided evidence for an association between male fWHR and the psychopathic personali...

Social Value Orientation (SVO) refers to an individual’s preference for the division of resources between the self and another person. Since evidence suggests that hormones influence several facets of human social behavior, we asked whether SVO might fluctuate across the female menstrual cycle. Using self-report data obtained in two independent onl...

Reciprocal exchanges can be understood as the updating of an initial belief about a partner. This initial level of trust is essential when it comes to establishing cooperation with an unknown partner, as cooperation cannot arise without a minimum of trust not justified by previous successful exchanges with this partner. Here we demonstrate the exis...

Increasing evidence suggests that action planning does not only affect the preparation and execution of overt actions but also "works back" to tune the perceptual system toward action-relevant information. We investigated whether the amount of this impact of action planning on perceptual selection varies as a function of motivation for action, whic...