Alle Publikationen
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2017
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(2017): Locally noisy autonomous agents improve global human coordination in network experiments. In: Nature 545 (7654), S. 370-374. DOI: 10.1038/nature22332
DOI: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5912653 Abstract: Coordination in groups faces a sub-optimization problem and theory suggests that some randomness may help to achieve global optima. Here we performed experiments involving a networked colour coordination game in which groups of humans interacted with autonomous software agents (known as bots). Subjects (n = 4,000) were embedded in networks (n = 230) of 20 nodes, to which we sometimes added 3 bots. The bots were programmed with varying levels of behavioural randomness and different geodesic locations. We show that bots acting with small levels of random noise and placed in central locations meaningfully improve the collective performance of human groups, accelerating the median solution time by 55.6%. This is especially the case when the coordination problem is hard. Behavioural randomness worked not only by making the task of humans to whom the bots were connected easier, but also by affecting the gameplay of the humans among themselves and hence creating further cascades of benefit in global coordination in these heterogeneous systems.
2016
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(2016): Supplemental Material for Power and the Pursuit of a Partner’s Goals. In: Journal of personality and social psychology. DOI: 10.1037/pspi0000048.supp
Abstract: We investigated how power dynamics in close relationships influence the tendency to devote resources to the pursuit of goals valued by relationship partners, hypothesizing that low (vs. high) power in relationships would lead individuals to center their individual goal pursuit around the goals of their partners. We study 2 related phenomena: partner goal prioritization, whereby individuals pursue goals on behalf of their partners, and partner goal contagion, whereby individuals identify and adopt as their own the goals that their partner pursues. We tested our ideas in 5 studies that employed diverse research methods, including lab experiments and dyadic studies of romantic partners, and multiple types of dependent measures, including experience sampling reports, self-reported goal commitment, and behavioral goal pursuit in a variety of goal domains. Despite this methodological diversity, the studies provided clear and consistent evidence that individuals with low power in their relationships are especially likely to engage in both partner goal prioritization and partner goal contagion. zitiert von 16
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(2016): What it Takes to Successfully Implement Technology for Aging in Place: Focus Groups With Stakeholders. In: Journal of medical Internet research 18 (5). DOI: 10.2196/jmir.5253
DOI: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4904824 Abstract: BACKGROUND There is a growing interest in empowering older adults to age in place by deploying various types of technology (ie, eHealth, ambient assisted living technology, smart home technology, and gerontechnology). However, initiatives aimed at implementing these technologies are complicated by the fact that multiple stakeholder groups are involved. Goals and motives of stakeholders may not always be transparent or aligned, yet research on convergent and divergent positions of stakeholders is scarce. OBJECTIVE To provide insight into the positions of stakeholder groups involved in the implementation of technology for aging in place by answering the following questions: What kind of technology do stakeholders see as relevant? What do stakeholders aim to achieve by implementing technology? What is needed to achieve successful implementations? METHODS Mono-disciplinary focus groups were conducted with participants (n=29) representing five groups of stakeholders: older adults (6/29, 21%), care professionals (7/29, 24%), managers within home care or social work organizations (5/29, 17%), technology designers and suppliers (6/29, 21%), and policy makers (5/29, 17%). Transcripts were analyzed using thematic analysis. RESULTS Stakeholders considered 26 different types of technologies to be relevant for enabling independent living. Only 6 out of 26 (23%) types of technology were mentioned by all stakeholder groups. Care professionals mentioned fewer different types of technology than other groups. All stakeholder groups felt that the implementation of technology for aging in place can be considered a success when (1) older adults' needs and wishes are prioritized during development and deployment of the technology, (2) the technology is accepted by older adults, (3) the technology provides benefits to older adults, and (4) favorable prerequisites for the use of technology by older adults exist. While stakeholders seemed to have identical aims, several underlying differences emerged, for example, with regard to who should pay for the technology. Additionally, each stakeholder group mentioned specific steps that need to be taken to achieve successful implementation. Collectively, stakeholders felt that they need to take the leap (ie, change attitudes, change policies, and collaborate with other organizations); bridge the gap (ie, match technology with individuals and stimulate interdisciplinary education); facilitate technology for the masses (ie, work on products and research that support large-scale rollouts and train target groups on how to use technology); and take time to reflect (ie, evaluate use and outcomes). CONCLUSIONS Stakeholders largely agree on the direction in which they should be heading; however, they have different perspectives with regard to the technologies that can be employed and the work that is needed to implement them. Central to these issues seems to be the tailoring of technology or technologies to the specific needs of each community-dwelling older adult and the work that is needed by stakeholders to support this type of service delivery on a large scale.
Keywords: Administrative Personnel, Aged, Aging, Assistenz, Attitude of Health Personnel, Biomedical Technology/methods/trends, Caregivers/psychology, Delivery of Health Care/trends, Female, Focus Groups, Geriatrics/methods/trends, Goals, Home Care Services, Humans, Independent Living/trends, Male, Mensch-Roboter-Interaktion, Middle Aged, Needs Assessment, Social Workers/psychology, Telemedicine/trends 2013
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(2013): Social cognitive dynamics of popularity and indirect aggression. The role of social goals and social intelligence. ProQuest Information & Learning, US.
Abstract: This study investigated the social goals of adolescents and their use of indirect aggression. Additionally, it examined how gender, peer status (i.e. perceived popularity) and individual differences in social intelligence relate to adolescents' social goals and their use of indirect aggression. 109 seventh-graders completed a social goals measure and the Tromsø Social Intelligence Scale (TSIS; Silvera, Martinussen, & Dahl, 2001). Participants also completed a peer nomination assessment of popularity and indirect aggression. Results indicated reliable associations among social goals and peer-nominated indirect aggression. Gender, popularity, and social intelligence further moderated these associations. These findings suggest that the social goals of adolescents can be a motivating force to engage in hurtful behaviors and provide a framework from which peer relations researchers can improve peer relationships and be better equipped to intervene in indirect aggression. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
2012
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(2012): Mindset theory of action phases
Abstract: Mindset theory of action phases is based on the distinction between motivation and volition as proposed by the Rubicon model which claims that prior to crossing the Rubicon (i.e., making a goal decision) motivational principles apply whereas thereafter volitional principles set in. The latter are concerned with goal implementation, whereas the former relate to the choosing of goals. Mindset theory of action phases proposes that different cognitive procedures are activated when people tackle the task of choosing goals versus implementing them. The respective task demands determine the features that characterize the deliberative versus implemental mindset. These pertain to what type of information is preferably processed and how it is analyzed. Mindset research has produced findings that not only support the motivation versus volition distinction but also, enlighten various debates and theories in social psychology (e.g., optimism versus realism debate, dual process theories, goal theory). Mindset theory of action phases has also spurred research on effective planning by pointing to implementation intentions (i.e., if-then plans). This research has had much applied impact. When it was linked up to research on strategies of motivationally smart goal setting (i.e., mental contrasting), it initiated the development of a time- and cost-effective behavior change intervention. zitiert von 143
2011
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(2011): Coordination in Human and Primate Groups. Berlin, Heidelberg: Springer Berlin Heidelberg
Abstract: Examines and describes small group coordination. The authors formulate an overview of the basic group challenge (group task) of coordination and describe how the context of the group task regulates the group's functions (effectiveness criteria) for achieving the task. Varying facets of the coordination challenge (coordination entities, mechanisms, dynamics, and levels) are explored. Finally, an inclusive functions-entities-mechanisms-patterns (FEMP) model of group coordination is presented. zitiert von 22
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(2011): Friend or Foe, Champ or Chump?. Social Conformity and Superiority Goals Activate Warmth-Versus Competence-Based Social Categorization Schemas. In: Social Psychological and Personality Science 3 (4), S. 471-478. DOI: 10.1177/1948550611427357
Abstract: Evaluations of individuals and social groups refer to two basic dimensions of social judgment: warmth and competence. Although previous research has explored the antecedents and consequences of these evaluations, there is a lack of understanding of the conditions under which warmth and competence information is used for social categorization in the first place. The present research developed a novel measure of individuals' tendencies to categorize persons in terms of competence versus warmth and tested whether these tendencies are predicted by chronic (Study 1, N = 301) and experimentally induced (Study 2, N = 69) social conformity and superiority goals. Social conformity goals predicted greater relative use of warmth information, while superiority goals predicted greater relative use of competence information in categorizing persons. These findings attest to the relevance of chronic as well as contextually induced goals at an early stage of social information processing related to social categorization. zitiert von 10
2010
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(2010): Creating good relationships: Responsiveness, relationship quality, and interpersonal goals. In: Journal of personality and social psychology 99 (1), S. 78-106. DOI: 10.1037/a0018186
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20565187 Abstract: Perceived partner responsiveness is a core feature of close, satisfying relationships. But how does responsiveness originate? Can people create relationships characterized by high responsiveness and, consequently, higher quality relationships? The authors suggest that goals contribute to cycles of responsiveness between two people, improving relationship quality for both of them. The present studies examine (a) how interpersonal goals initiate responsiveness processes in close relationships, (b) the self-perpetuating nature of these processes, and (c) how responsiveness evolves dynamically over time through both intrapersonal projection and reciprocal interpersonal relationship processes. In a semester-long study of 115 roommate dyads, actors' compassionate and self-image goals predicted a cycle of responsiveness between roommates, occurring within weeks and across the semester. In a 3-week study of 65 roommate dyads, actors' goals again predicted cycles of responsiveness between roommates, which then contributed to both actors' and partners' relationship quality. Results suggest that both projection and reciprocation of responsiveness associated with compassionate goals create upward spirals of responsiveness that ultimately enhance relationship quality for both people.
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(2010): Flexible latching: A biologically-inspired mechanism for improving the management of homeostatic goals. In: COGNITIVE COMPUTATION 2 (3), S. 230-241. DOI: 10.1007/s12559-010-9057-0
DOI: https://doi.org/10.1007/s12559-010-9057-0 Abstract: Controlling cognitive systems like domestic robots or intelligent assistive environments requires striking an appropriate balance between responsiveness and persistence. Basic goal arbitration is an essential element of low level action selection for cognitive systems, necessarily preceding even deliberate control in the direction of attention. In natural intelligence, chemically regulated motivation systems focus an agent’s behavioural attention on one problem at a time. Such simple durative decision state can improve the efficiency of artificial action selection by avoiding dithering, but taken to extremes such systems can be inefficient and produce cognitively implausible results. This article describes and demonstrates an easy-to-implement, general-purpose latching method that allows for a balance between persistence and flexibility in the presence of interruptions. This appraisal-based system facilitates automatic reassessment of the current focus of attention by existing action-selection mechanisms. The proposed mechanism, flexible latching, drastically improves efficiency in handling multiple competing goals at the cost of a surprisingly small amount of additional code (or cognitive) complexity. We discuss implications of these results for understanding natural cognitive systems. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
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 2007
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(2007) : The question of ’what to imitate’: Inferring goals and intentions from demonstrations In: Nehaniv, Chrystopher L.; Dautenhahn, Kerstin (Hg.): Imitation and social learning in robots, humans and animals: Behavioural, social and communicative dimensions: New York, NY: Cambridge University Press, S. 135-151
DOI: https://doi.org/10.1017/CBO9780511489808.011 Abstract: A difficult issue for robotics researchers is the question of what to imitate, that is, which aspects of a demonstration robots should copy. Sometimes it is appropriate to copy others’ actions, sometimes it is appropriate to copy others’ results and sometimes copying both or even neither of these is the most appropriate response. The chapter discusses the advantages of using an understanding of others’ goals and intentions to answer this question, copying what the demonstrator intended to do rather than what he actually did. Whereas some animals focus mainly on demonstrators’ results or actions, one-year-old human infants appear to use an understanding of others’ goals to decide what to imitate. The authors identify some specific ways in which infants can infer the goal of a demonstrator in imitation situations, using such information as the demonstrators’ gaze direction, emotional expressions, actions and the context. This is followed by a brief review of what robots currently can do in this regard, proposing some further challenges for them. (PsycINFO Database Record (c) 2019 APA, all rights reserved)
2006
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(2006): Hierarchical schemas and goals in the control of sequential behavior. In: Psychological Review 113 (4). DOI: 10.1037/0033-295X.113.4.887
DOI: http://www.ncbi.nlm.nih.gov/pubmed/17014307 Abstract: Traditional accounts of sequential behavior assume that schemas and goals play a causal role in the control of behavior. In contrast, M. Botvinick and D. C. Plaut argued that, at least in routine behavior, schemas and goals are epiphenomenal. The authors evaluate the Botvinick and Plaut account by contrasting the simple recurrent network model of Botvinick and Plaut with their own more traditional hierarchically structured interactive activation model (R. P. Cooper & T. Shallice, 2000). The authors present a range of arguments and additional simulations that demonstrate theoretical and empirical difficulties for both Botvinick and Plaut's model and their theoretical position. The authors conclude that explicit hierarchically organized and causally efficacious schema and goal representations are required to provide an adequate account of the flexibility of sequential behavior.
2003
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(2003): Viele Wege führen aus der Sackgasse. Lebensenttäuschungen durch Nicht-Ereignisse - Eine Chance zur persönlichen Entwicklung?. In: Report Psychologie 28 (10), S. 584-593. Online verfügbar unter http://www.report-psychologie.de/, zuletzt geprüft am 06.07.2018
Abstract: Es werden Bewältigungsprozesse von existenziellen Krisen untersucht, die durch "Nicht-Ereignisse" hervorgerufen werden, d. h. durch Lebensenttäuschungen aufgrund des dauerhaften Ausbleibens erwünschter Ereignisse oder des Nichterreichens von bedeutsamen Lebenszielen. Befragt wurden 40 Personen, die in den vergangenen fünf Jahren ein gravierendes Nicht-Ereignis verarbeitet hatten, etwa ungewollte Kinderlosigkeit oder eine ausgebliebene berufliche Karriere. Derartige Krisen können sich über Jahre hinziehen. Der Loslösungs- und Bewältigungsprozess wurde durch Anstöße von anderen Personen oder durch innere Prozesse wie eine Bilanzierung der eigenen Situation ausgelöst. Bei der Bewältigung konnten kognitive und emotionale Verarbeitungsprozesse, soziale Unterstützung, aktionale Verarbeitung (Ersatzaktivitäten) und pragmatisches Handeln als Prozesshilfen gefunden werden. Alle Befragten berichteten von Entwicklungsgewinnen aufgrund der Krise und ihrer Bewältigung, wobei sich mehr als die Hälfte der Aussagen auf die "Selbstentwicklung" (Selbsterkenntnis, Selbstwahrnehmung, Selbstvertrauen u. a. ) bezogen. Ein weiterer Aspekt war der Zuwachs an kognitiven und kreativen, emotionalen, sozialen und lebenspraktischen Fähigkeiten und Haltungen. Die Lebenskrisen hatten bei fast drei Viertel der Betroffenen Fragen nach einem versteckten Sinn der spezifischen Erfahrung und die Beschäftigung mit einer generellen existenziellen Sinnfrage ausgelöst oder aktiviert. zitiert von 3
1999
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(1999) : Die Integration des Selbst und der Moral in der Entwicklung moralischen Engagements In: Edelstein, Wolfgang; Nunner-Winkler, Gertrud; Noam, Gil (Hg.): Moral und Person: 1. Aufl., [Nachdr.]: Frankfurt am Main: Suhrkamp (Suhrkamp-Taschenbuch Wissenschaft Beiträge zur Soziogenese der Handlungsfähigkeit), S. 149-174
Abstract: Es wird eine bestimmte Sichtweise des Zusammenspiels von interpersonellem Einfluss, moralischer Entwicklung und dem Selbst entworfen. Als zentrale grundlegende Behauptung wird expliziert, dass das Individuum während des Entwicklungsverlaufs einen aktiven Anteil an der Gestaltung seiner Gruppen hat. Die hierin vorgenommene Verbindung von Entwicklungs- und Sozialpsychologie wird als Zieltransformationsansatz bezeichnet. An einer Fallgeschichte wird nachgezeichnet, wie sich im Laufe der Entwicklung von Individuen ihre Ziele ändern: Persönliche Ziele werden zu moralischen Zielen, moralische Ziele werden zunehmend wichtiger für das Selbstgefühl, sind zunehmend weniger vom Selbstinteresse zu differenzieren. Erkenntnisse, die in einer Gruppe von moralisch vorbildlichen Individuen gewonnen wurden, werden als Argumentationsgrundlage herangezogen. zitiert von: 19
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