Alle Publikationen
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2017
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(2017): Altruistic behavior in cohesive social groups. The role of target identifiability. In: PLoS one 12 (11). DOI: 10.1371/journal.pone.0187903
DOI: http://www.ncbi.nlm.nih.gov/pubmed/29161282 Abstract: People's tendency to be more generous toward identifiable victims than toward unidentifiable or statistical victims is known as the Identifiable Victim Effect. Recent research has called the generality of this effect into question, showing that in cross-national contexts, identifiability mostly affects willingness to help victims of one's own "in-group." Furthermore, in inter-group conflict situations, identifiability increased generosity toward a member of the adversary group, but decreased generosity toward a member of one's own group. In the present research we examine the role of group-cohesiveness as an underlying factor accounting for these divergent findings. In particular, we examined novel groups generated in the lab, using the minimal group paradigm, as well as natural groups of students in regular exercise sections. Allocation decisions in dictator games revealed that a group's cohesiveness affects generosity toward in-group and out-group recipients differently, depending on their identifiability. In particular, in cohesive groups the identification of an in-group recipient decreased, rather than increased generosity.
2016
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(2016): Does children's moral compass waver under social pressure? Using the conformity paradigm to test preschoolers' moral and social-conventional judgments. In: Journal of experimental child psychology 150, S. 241-251. DOI: 10.1016/j.jecp.2016.06.006
DOI: http://www.ncbi.nlm.nih.gov/pubmed/27367300 Abstract: The current study tested whether preschoolers' moral and social-conventional judgments change under social pressure using Asch's conformity paradigm. A sample of 132 preschoolers (Mage=3.83years, SD=0.85) rated the acceptability of moral and social-conventional events and also completed a visual judgment task (i.e., comparing line length) both independently and after having viewed two peers who consistently made immoral, unconventional, or visually inaccurate judgments. Results showed evidence of conformity on all three tasks, but conformity was stronger on the social-conventional task than on the moral and visual tasks. Older children were less susceptible to pressure for social conformity for the moral and visual tasks but not for the conventional task. zitiert von: 6
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(2016) : Who should robots adapt to within a multi-party interaction in a public space?: 2016 11th ACM/IEEE International Conference on Human-Robot Interaction (HRI): Christchurch, New Zealand: IEEE Press, S. 483-484
DOI: https://doi.org/10.1109/HRI.2016.7451817 Abstract: Robots in public environments are challenged with socially appropriate interactions with previously unseen users: they need to offer appropriate services and shape their interaction style according to the particular individual’s needs and preferences, for example the elderly and children. In addition, interactions in public spaces are not limited to merely two parties, but often involve multi-party situations with changing numbers of participants. The research question of this work is to investigate what rules should a socially competent robot follow in order to adapt to such complex social situations in real-world scenarios.
Keywords: Analysis of Variance, Angemessen(heit) (von Technik), complex social situations, Hospitals, Humanoid Robots, human-robot interaction, ieee xplore, Information exchange, intelligent robots, Legged locomotion, multiparty interaction, Multi-Party Interaction, public environments, public spaces, real-world scenarios, Robot sensing systems, service robot, Social robotic, socially appropriate interactions, socially competent robot, speech, user needs, user preferences 2015
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(2015): Can we learn to treat one another better? A test of a social intelligence curriculum. In: PLoS one 10 (6)
Abstract: This paper reports on the first test of the value of an online curriculum in social intelligence (SI). Built from current social and cognitive neuroscience research findings, the 50 session SI program was administered, with facilitation in Spanish by classroom instructors, to 207 students from Universidad Rey Juan Carlos in Madrid as part of their undergraduate classes. All materials were translated into Castilian Spanish, including outcome measures of SI that have been used in prior studies to provide valid estimates of two key components of social intelligence: 1) Sensitivity to others and 2) confidence in one’s capacity to manage social situations. Pre- and Posttest were administered to participants in the SI training, and also to 87 students in similar classes who did not receive the program who served as the control group. Gender and emotional intelligence levels at pretest also were examined as potential individual differences that might affect the impact of the program on study outcomes. Repeated measures ANOVAs on study outcomes revealed significant increases, from pre to post, in most measures of social intelligence for program participants in comparison to controls, with no effects of gender or age on program effectiveness. Prior scores on emotional intelligence were not a prerequisite for learning from the program. Some findings suggest ways the program may be improved to have stronger effects. Nonetheless, the findings indicate that the SI program tested here shows considerable promise as a means to increase the willingness of young adults to take the perspective of others and enhance their efficacy for initiating and sustaining positive social connections. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
Keywords: Adult, Analysis of Variance, College Students, Curriculum, Emotional Intelligence, Female, Humans, Intelligence, Interaktionsforschung, Lerntheorien, Male, online curriculum, positive social connections, Self Concept, Social intelligence, Social Skills, Soziale Intelligenz, Surveys and Questionnaires, Young Adult 2014
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(2014): The role of age and motivation for the experience of social acceptance and rejection. In: Developmental Psychology 50 (7), S. 1943-1950. DOI: 10.1037/a0036979
DOI: http://www.ncbi.nlm.nih.gov/pubmed/24842461 Abstract: A study with n = 55 younger (18-33 years, M = 23.67) and n = 58 older (61-85 years, M = 71.44) adults investigated age-related differences in social approach and avoidance motivation and their consequences for the experience of social interactions. Results confirmed the hypothesis that a predominant habitual approach motivation in younger adults shifts toward a stronger avoidance motivation in older adults. Moreover, age and momentary motivation predicted the experience of an actual social interaction. Younger adults reported stronger negative emotions in a rejection situation when striving to approach acceptance rather than avoid rejection. Conversely, older adults reported fewer positive emotions in a rejection situation when they attempted to avoid rejection rather than approach acceptance. Taken together, the present study demonstrates that the same motivation has different consequences for the experience of potentially threatening social situations in younger and older adults. People seem to react emotionally when the achievement of important developmental goals (approaching others in young adulthood, avoiding negative social interactions in older adulthood) is thwarted. Moreover, results suggest that approach and avoidance motivation play an important role for socioemotional development.
Keywords: 80 and over, Adolescent, Adult, Age Factors, Aged, Alter, Analysis of Variance, Female, Galvanic Skin Response, Gerontologie, Humans, Interpersonal Relations, Male, Middle Aged, Motivation, physiology, PSYCHOLOGY, Self Report, Social Distance, Social Support, Sozialpsychologie, Young Adult -
(2014): A towel less. Social norms enhance pro-environmental behavior in hotels. In: The Journal of Social Psychology 154 (2), S. 97-100. DOI: 10.1080/00224545.2013.855623
DOI: http://www.ncbi.nlm.nih.gov/pubmed/24765814 Abstract: Previous research has shown that normative appeals to engage in environmentally friendly behavior were most effective when they were accompanied by a provincial norm (e.g., when norms matched individuals' immediate situational circumstances). Analyzing hotel guests' towel-use during their stay, the current study tests whether messages employing provincial norms were more effective in reducing towel-use than standard environmental messages. In line with previous findings, guests of two hotels used significantly fewer towels when provincial normative appeals--rather than standard environmental messages--were communicated. These findings corroborate to the body of research demonstrating the power of social norms on environmental behavior.
2012
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(2012): "Robovie, you'll have to go into the closet now". Children's social and moral relationships with a humanoid robot. In: Developmental Psychology 48 (2), S. 303-314. DOI: 10.1037/a0027033
DOI: https://doi.org/10.1037/a0027033 Abstract: Children will increasingly come of age with personified robots and potentially form social and even moral relationships with them. What will such relationships look like? To address this question, 90 children (9-, 12-, and 15-year-olds) initially interacted with a humanoid robot, Robovie, in 15-min sessions. Each session ended when an experimenter interrupted Robovie's turn at a game and, against Robovie's stated objections, put Robovie into a closet. Each child was then engaged in a 50-min structural-developmental interview. Results showed that during the interaction sessions, all of the children engaged in physical and verbal social behaviors with Robovie. The interview data showed that the majority of children believed that Robovie had mental states (e.g., was intelligent and had feelings) and was a social being (e.g., could be a friend, offer comfort, and be trusted with secrets). In terms of Robovie's moral standing, children believed that Robovie deserved fair treatment and should not be harmed psychologically but did not believe that Robovie was entitled to its own liberty (Robovie could be bought and sold) or civil rights (in terms of voting rights and deserving compensation for work performed). Developmentally, while more than half the 15-year-olds conceptualized Robovie as a mental, social, and partly moral other, they did so to a lesser degree than the 9- and 12-year-olds. Discussion focuses on how (a) children's social and moral relationships with future personified robots may well be substantial and meaningful and (b) personified robots of the future may emerge as a unique ontological category. zitiert von 138
Keywords: Autonomy Medical Subject Headings (MeSH): Adolescent, Child, Analysis of Variance, Child Attitudes, Child Behavior, Child development, Communication, Entwicklungspsychologie, Female, Human Computer Interaction, Humans, Independence (Personality), Interview, Psychological, Male, Mensch-Roboter-Interaktion, Mensch-Technik-Relation, Mental Models, Moral, Morals, Robotics, Social Behavior, Verbal Behavior -
(2012): TripleR: An R package for social relations analyses based on round-robin designs. In: Behavior research methods 44 (2), S. 455-470. DOI: 10.3758/s13428-011-0150-4
DOI: https://doi.org/10.3758/s13428-011-0150-4 Abstract: In this article, we present TripleR, an R package for the calculation of social relations analyses (Kenny, 1994) based on round-robin designs. The scope of existing software solutions is ported to R and enhanced with previously unimplemented methods of significance testing in single groups (Lashley & Bond, 1997) and handling of missing values. The package requires only minimal knowledge of R, and results can be exported for subsequent analyses to other software packages. We demonstrate the use of TripleR with several didactic examples.
Keywords: Algorithms, Analysis of Variance, Data Interpretation, Statistical, Group Structure, Humans, Interpersonal Relations, Longitudinal Studies, Models, Psychological, Models, Statistical, Psychology, Social/methods/statistics & numerical data, Research Design, Social Behavior, Social Perception, Software 2011
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(2011) : Creation and Evaluation of emotion expression with body movement, sound and eye color for humanoid robots: 2011 RO-MAN: 2011 RO-MAN: Georgia, USA: IEEE, S. 204-209
DOI: https://doi.org/10.1109/ROMAN.2011.6005263 Abstract: The ability to display emotions is a key feature in human communication and also for robots that are expected to interact with humans in social environments. For expressions based on Body Movement and other signals than facial expressions, like Sound, no common grounds have been established so far. Based on psychological research on human expression of emotions and perception of emotional stimuli we created eight different expressional designs for the emotions Anger, Sadness, Fear and Joy, consisting of Body Movements, Sounds and Eye Colors. In a large pre-test we evaluated the recognition ratios for the different expressional designs. In our main experiment we separated the expressional designs into their single cues (Body Movement, Sound, Eye Color) and evaluated their expressivity. The detailed view at the perception of our expressional cues, allowed us to evaluate the appropriateness of the stimuli, check our implementations for flaws and build a basis for systematical revision. Our analysis revealed that almost all Body Movements were appropriate for their target emotion and that some of our Sounds need a revision. Eye Colors could be identified as an unreliable component for emotional expression.
Keywords: Analysis of Variance, Angemessen(heit) (von Technik), anger emotion, Body Movement, Color, emotion expression, eye color, fear emotion, human communication, Humanoid Robots, Humans, ieee xplore, Image color analysis, joy emotion, Manipulators, Mobile robots, Particle measurements, sadness emotion -
(2011): Learning of timing patterns and the development of temporal expectations. In: Psychological research 75 (3), S. 243-258. DOI: 10.1007/s00426-010-0302-7
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20683612 Abstract: The present study investigated the learning of a culturally unfamiliar musical rhythm, leading to the development of temporal expectations, and it explored the potential for generalization across tempi and tasks. With that aim, we adapted the serial reaction time task to examine the learning of temporal structures by an indirect method. The temporal pattern employed was based on a complex interval ratio (2:3) and compared to one based on a simple interval ratio (1:2). In the exposure phase, non-musician participants performed a two-choice speeded discrimination task that required responding by key press to each event of the simple or complex auditory pattern. Participants were not informed about the temporal regularities; their task solely concerned the discrimination task. During exposure (Experiments 1-3), response times decreased over time for both temporal patterns, but particularly for the events following the longer interval of the more complex 2:3 pattern. Exposure further influenced performance in subsequent testing phases, notably the precision of tap timing in a production task (Experiment 2) and temporal expectations in a perception task (Experiment 3). Our findings promote the new paradigm introduced here as a method to investigate the learning of temporal structures. zitiert von 23
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(2011): Social distance modulates recipient's fairness consideration in the dictator game. An ERP study. In: Biological psychology 88 (2-3), S. 253-262. DOI: 10.1016/j.biopsycho.2011.08.009
DOI: http://www.ncbi.nlm.nih.gov/pubmed/21889968 Abstract: Previous research showed that social distance (e.g., being friends or strangers) influences people's fairness consideration and other-regarding behavior. However, it is not entirely clear how social distance influences the recipient's evaluation of (un)fair behavior. In this study, we let people play a dictator game in which they received (un)fair offers from either friends or strangers while their brain potentials were recorded. Results showed that the medial frontal negativity (MFN), a component associated with the processing of expectancy violation, was more negative-going in response to unfair than to fair offers from friends whereas it did not show differential responses to offers from strangers. The P300 was more positive for fair than for unfair offers irrespective of friends or strangers making the offers. These results suggest that violation of social norms can be detected at an early stage of evaluative processing and that this detection can be modulated by social distance. zitiert von 66
Keywords: Adult, Analysis of Variance, Biologie, distance, Event-Related Potentials, P300/physiology, Female, Friends/psychology, Frontal Lobe/physiology, Games, Experimental, Humans, Interpersonal Relations, Male, Reward, science direct, Social Distance, Social Values, Verhaltensforschung, Young Adult 2010
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(2010): Increasing breast examinations among arab women using a tailored culture-based intervention. In: Behavioral medicine (Washington, D.C.) 36 (3), S. 92-99. DOI: 10.1080/08964280903521313
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20801757 Abstract: This study aimed to assess outcomes of a culture-specific intervention devised to reduce barriers to breast cancer screening among Arab women in Israel. Women in intervention (n = 42) and control (n = 24) groups answered breast examination performance and Arab culture-specific barriers and health beliefs questionnaires at pre- and postintervention. Women in the study group received tailored telephone intervention between the 2 interviews. Although the study and control groups did not differ in rate of attending clinical examinations and mammography at pre-intervention, at post-intervention, almost 48% of the intervention group and 12.5% of the control group scheduled or attended a clinical examination, and 38.5% of women in the intervention group and 21.4% of the control group attended or scheduled a mammography. Of the cultural barriers, a significant group x time effect was found for the cultural barriers of exposure, social barriers, and self-uneasiness with body, with a higher decrease in the intervention group. Of the health beliefs, a group x time effect was found for perceived vulnerability and perceived barriers to clinical examination and mammography, which significantly decreased in the intervention group, but not in the control group. The preliminary results showed that the culture-based intervention was effective in reducing barriers and increasing the rate of breast cancer examinations.
Keywords: Adult, Analysis of Variance, Arabs/ethnology, Breast Neoplasms/diagnosis/prevention & control, Breast Self-Examination, Culture, Female, Health Knowledge, Attitudes, Practice, Humans, Israel/ethnology, Middle Aged, Patient Education as Topic, Proxemik, Status / biologische Marker, Surveys and Questionnaires, Telephone, Women's Health/ethnology -
(2010): Culture and cooperation. In: Philosophical transactions of the Royal Society of London. Series B, Biological sciences 365 (1553), S. 2651-2661. DOI: 10.1098/rstb.2010.0135
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20679109 Abstract: Does the cultural background influence the success with which genetically unrelated individuals cooperate in social dilemma situations? In this paper, we provide an answer by analysing the data of Herrmann et al. (2008a), who studied cooperation and punishment in 16 subject pools from six different world cultures (as classified by Inglehart & Baker (2000)). We use analysis of variance to disentangle the importance of cultural background relative to individual heterogeneity and group-level differences in cooperation. We find that culture has a substantial influence on the extent of cooperation, in addition to individual heterogeneity and group-level differences identified by previous research. The significance of this result is that cultural background has a substantial influence on cooperation in otherwise identical environments. This is particularly true in the presence of punishment opportunities.
2009
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(2009): Stress prompts habit behavior in humans. In: The Journal of neuroscience : the official journal of the Society for Neuroscience 29 (22), S. 7191-7198. DOI: 10.1523/JNEUROSCI.0979-09.2009
DOI: http://www.ncbi.nlm.nih.gov/pubmed/19494141 Abstract: Instrumental behavior can be controlled by goal-directed action-outcome and habitual stimulus-response processes that are supported by anatomically distinct brain systems. Based on previous findings showing that stress modulates the interaction of "cognitive" and "habit" memory systems, we asked in the presented study whether stress may coordinate goal-directed and habit processes in instrumental learning. For this purpose, participants were exposed to stress (socially evaluated cold pressor test) or a control condition before they were trained to perform two instrumental actions that were associated with two distinct food outcomes. After training, one of these food outcomes was selectively devalued as subjects were saturated with that food. Next, subjects were presented the two instrumental actions in extinction. Stress before training in the instrumental task rendered participants' behavior insensitive to the change in the value of the food outcomes, that is stress led to habit performance. Moreover, stress reduced subjects' explicit knowledge of the action-outcome contingencies. These results demonstrate for the first time that stress promotes habits at the expense of goal-directed performance in humans. zitiert von 319
Keywords: Analysis of Variance, Blood Pressure/physiology, Conditioning, Operant/physiology, Emotions, Extinction, Psychological/physiology, Female, Goals, Habits, Humans, Hydrocortisone/metabolism, Learning, Male, MEMORY, Neurowissenschaften, Operant Conditioning, performance, Probability, Psychomotor Performance/physiology, Saliva/metabolism, Satiation/physiology, Reinforcement (Psychology), Stress, Stress, Psychological/physiopathology, Young Adult
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