Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
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Categorization Threat and collective narcissism
No full textCollective narcissism, a belief that one’s ingroup, although exceptional, is not sufficiently recognized by others (Golec de Zavala et al., 2009), is associated with prejudice and intergroup hostility (for review Golec de Zavala et al., 2019; Golec de Zavala & Lantos, 2020). Considering the detrimental consequences of collective narcissism for intergroup relations are well-established, it is important to understand the conditions that inspire collective narcissism to prevent its detrimental consequences. Recent research demonstrated that collective narcissism is predicted by social identity threat (i.e., the sense that the ingroup’s identity is devalued, Bagci et al., 2020) and intergroup threat (i.e., the sense that the ingroup’s welfare, values or distinctiveness are undermined, Guerra et al., 2020). However, most of the research on predictors of collective narcissism is correlational. We extend this research by examining experimentally whether inappropriate categorization that undermines an ingroup’s distinctiveness increases collective narcissism (Branscombe et al., 1999)
The vicissitudes of paternalistic stereotypes (study 3b pre-registration)
No full textThe aim is to examine whether the compensatory judgments generally observed concerning social targets located in the low competence high warmth quadrant of the Big Two bi-dimensional are genuine or whether a more derogatory picture emerges when perceivers are guided by a norm of honesty, rather than a non-dicrimination norm. This sensitivity to the norm should manifest itself more among people high on external motivation to respond without prejudice than among people low on external motivation to respond without prejudice. Next to the external motivation to respond without prejudice, we will explore the potential impact of self-monitoring, as this individual difference may also play a role in people’s tendency to repress prejudice as a function of the salient norm.We will present results of a fake survey dealing with the importance given to honesty (vs non-discrimination) when talking about others. Participants (students) will learn that this study was conducted among students of the previous year. Then, we will ask participants to rate seven target groups (Black, disabled, elderly, housewives, obese, peasant, gypsies) on the two fundamental dimensions of social evaluation (warmth and competence). These specific groups were pilot tested to be perceived as warmer than average and less competent than average. Importantly, we will measure participants’ external motivation to respond without prejudice (and self-monitoring) approximately two weeks before participants will take part in the experiment proper
Are Pathogenic Purity and Sexual Purity shaped by different Psychological Mechanisms?
No full textPre-registration - see word documen
Who nurtures a ‘strong reciprocator’? Parental modeling of reciprocal behavior in a cooperative dilemma.
No full textThe proposed study addresses parental behavioral modeling in a scenario of ‘Direct’ reciprocity and will assess adults’ reciprocal behavior when the interaction occurs in the presence of their child. Specifically, our first question is how adults act towards an unfamiliar adult partner who acted cooperatively/selfishly towards them in a one-shot, sequential, and costly interaction? Our second question is will adult change their behavior in the presence of their child? Lastly, our third question is whether adults respond differently across their child’s gender. Our primary focus is on the behavior of parents. Nonetheless, we will use the same one-shot, sequential and costly interaction with children as well in order to assess children’s reciprocal behavior and its’ alignment with the behavior of their parents.
Pre-Data Analysis Registration for Minimal Groups Procedures and Outcomes
No full textThis pre-registration includes an updated analysis plan and data cleaning and analysis scripts for our project, Minimal Group Procedures and Outcomes
Toward Circumplex Model of Narcissism. Nomological network, resilience, and temperament: Cross-sectional and diary studies
No full textFollowing A-C model of grandiose narcissism we posit that despite narcissism is an agentic trait, narcissistic individuals could use both agentic and communal means to satisfy their core motives (Gebauer et al., 2012). We supplement this model by adopting Interpersonal Circumplex (Wiggins, 1995) and Circumplex Model of Personality Metatraits (Strus & Cieciuch, 2017). As a result, we propose Circumplex Model of Narcissism, where we describe narcissistic personality as comprised by eight octants: corresponding to narcissistic admiration and rivalry concept (Back et al., 2013), reframing communal narcissism (Gebauer et al., 2012) as comprised by narcissistic sanctity and heroism (Żemojtel-Piotrowska et al., 2021), reframing “classical” vulnerable narcissism as comprised by vulnerable isolation and enmity (Rogoza et al., 2021) and proposing two additional strategies located between high warm/alpha plus and low dominance/beta-minus poles of the ICP and the CPM. Therefore, we expect that all these eight aspects of narcissistic personality are related with agency and communion congruent with these circumplexes and these aspects are related to corresponding strategies aimed at ego-boosting/ego-hiding or ego-defence. Ego-boosting/ego-hiding strategies are: admiration, sanctity, isolation and fusion. Ego-defence strategies are: rivalry, heroism, enmity and servility
Experiment S2b
No full textIn this study, we present participants with image sequences depicting either individuals or dyads building block towers. Individual actors build the tower by alternating between using their left and right hands to place blocks atop it. Dyads distribute this task such that they take turns placing blocks on the tower. Occasionally, an alternation violation occurs in which the same hand (individual condition) or the same actor (joint/dyad condition) places two blocks atop the tower in a row.
Upon seeing a block placed on the tower, participants will be asked to make rapid keypress responses to indicate either the colour of the block or the side of the screen from which it came.
We aim to test whether social contexts modulate observers predicted actions by comparing participants' response times and error rates (combined as inverse efficiency scores) across individual and joint image sets
Sequential Public Goods Game among profit-maximizing players
No full textNOTE: This preregistration was required for a grant application, and the grant was not funded. No data was collected.
A sequential Public Goods Game is a PGG in which players move one after another. In this case, no information is transmitted among the players. Here, we investigate the effects order has on behavior in the PGG as well as the correspondence between contributions and predictions of others' contributions among only those players attempting to maximize their own profits from the game, as determined by a Social Value Orientation scale.
There is a significant body of literature examining behavior in sequential public goods games (public goods games where players make their move one after another). Generally, empirical evidence and modeling support lower contributions from players later in the sequence. However, this is accompanied by some sort of information about earlier players' moves flowing to later players. We examine the effect of sequence alone. The game as usually formalized is not responsive to sequence alone: rational players should not change their strategies on the basis of the order in which they move
Individual differences in the acute response to experimentally induced inflammation: brain and psychological predictors. A randomized placebo-controlled study using experimental endotoxemia in healthy human volunteers
No full textPRINCIPAL INVESTIGATORS: Julie Lasselin, PhD; Mats Lekander, PhD, Professor. OTHER INVESTIGATORS: Emily Brück, MD, PhD; Kristoffer Månsson, PhD; Daniel Wilhelms, MD, PhD; Paul Hamilton, PhD; Markus Heilig, MD, PhD; Lina Hansson, MSc; Pétur Sigurjónsson, MD; Arnaud Tognetti, PhD.
BACKGROUND: The behavioral response to inflammatory activation varies greatly between individuals. The knowledge about what causes these differences is sparse, but could possibly be related to sensitivity to inflammation-related depression and other perturbations related to neuroinflammation. In the present study, we use experimentally-induced immunological activation in healthy humans to study brain morphological as well as behavioral predictors of individual sensitivity.
GENERAL AIM: The general aim of the study is to assess the predicting effect of brain morphology and activity, and of psychological predictors in the acute behavioral response to experimentally induced inflammation.
RESEARCH QUESTIONS: The main research questions are:
● to assess how acute inflammation affects:
○ grey matter volume of the insula and the amygdala, and volume of the anterior cingulate cortex, the midcingulate cortex, and the lateral orbitofrontal cortex;
○ activation (BOLD signal) of the insula and the amygdala, and of the anterior cingulate cortex, the midcingulate cortex, the lateral orbitofrontal cortex, during a task involving reappraisal of emotions;
○ activation of the insula and of the anterior cingulate cortex during a task activating bodily signals.
● to assess whether a stronger sickness response (i.e. sickness behavior, negative mood, fatigue, anxiety, pain) to experimental endotoxemia is predicted by:
○ Baseline or inflammation-induced larger grey matter volume of the insula and the amygdala, and smaller volume of the anterior cingulate cortex, the midcingulate cortex, and the lateral orbitofrontal cortex;
○ Baseline or inflammation-induced activation (BOLD signal) of the insula, the amygdala, the anterior cingulate cortex, the midcingulate cortex, the lateral orbitofrontal cortex, during a task involving reappraisal of emotions;
○ Baseline or inflammation-induced stronger activation of the insula and weaker activation of the anterior cingulate cortex during a task activating bodily signals.
We also want to assess whether a stronger sickness response (i.e. sickness behavior, negative mood, fatigue, anxiety, pain) to experimental endotoxemia is predicted by:
● higher interoceptive sensitivity as measured by self-report and an objective task (heartrate discrimination task);
● less cognitive resilience (i.e. self-efficacy, optimism, perseverance, coping strategies, ability to update beliefs in the fact of contradictory evidence);
● worse baseline emotional status (i.e. trait anxiety, fatigue, perceived stress);
● stronger health anxiety and disgust tendencies;
● Sociocultural factors that have been found to relate to sickness behavior, such as stoic endurance of pain and discomfort, familism, individualism, and collectivism;
● baseline biological motion pattern (walking speed, rigidity of gait, and slumped posture);
● the quality of care received by the sick participant;
● How they feel usually when sick, COVID-19 previous diagnosis and symptoms, days of social isolation, and tendencies to seek care in response to COVID-19 symptoms.
Other research questions include to assess how acute inflammation affects:
● biological motion pattern (rigidity of gait and slumped posture);
● approach-avoidance behavior towards negative and sickness-related stimuli as well as towards caregivers;
● the way sick individuals communicate about their illness and how it affects patient-caregiver relationship;
● Body odors
● Prosodic and acoustic cues
We also want to study how the emotional response during sickness (negative mood, anxiety, perceived stress) in turn affects the recovery of the inflammatory response, and how this effect is mediated by the production of stress hormones.
Besides, we aim at creating a database of experimentally validated and standardized face, walking, and vocal ‘sickness stimuli’.
Finally, we wish to demonstrate the relevance of the model of experimental endotoxemia for inflammation-associated depression (Lasselin et al. 2020c) by assessing whether stronger behavioral response to endotoxin can predict a higher risk to develop depression later in life