TY - JOUR A1 - Spiekermann, Sarah A1 - Krasnova, Hanna A1 - Hinz, Oliver A1 - Baumann, Annika A1 - Benlian, Alexander A1 - Gimpel, Henner A1 - Heimbach, Irina A1 - Koester, Antonia A1 - Maedche, Alexander A1 - Niehaves, Bjoern A1 - Risius, Marten A1 - Trenz, Manuel T1 - Values and ethics in information systems BT - a state-of-the-art analysis and avenues for future research JF - Business & information systems engineering Y1 - 2022 U6 - https://doi.org/10.1007/s12599-021-00734-8 SN - 2363-7005 SN - 1867-0202 VL - 64 IS - 2 SP - 247 EP - 264 PB - Springer Gabler CY - Wiesbaden ER - TY - JOUR A1 - Meythaler, Antonia A1 - Krause, Hannes-Vincent A1 - Baumann, Annika A1 - Krasnova, Hanna A1 - Thatcher, Jason Bennett T1 - The rise of metric-based digital status BT - an empirical investigation into the role of status perceptions in envy on social networking sites JF - European Journal of Information Systems N2 - Widespread on social networking sites (SNSs), envy has been linked to an array of detrimental outcomes for users’ well-being. While envy has been considered a status-related emotion and is likely to be experienced in response to perceiving another’s higher status, there is a lack of research exploring how status perceptions influence the emergence of envy on SNSs. This is important because SNSs typically quantify social interactions and reach with metrics that indicate users’ relative rank and status in the network. To understand how status perceptions impact SNS users, we introduce a new form of metric-based digital status rooted in SNS metrics that are available and visible on a platform. Drawing on social comparison theory and status literature, we conducted an online experiment to investigate how different forms of status contribute to the proliferation of envy on SNSs. Our findings shed light on how metric-based digital status influences feelings of envy on SNSs. Specifically, we could show that metric-based digital status impacts envy through increasing perceptions of others’ socioeconomic and sociometric statuses. Our study contributes to the growing discourse on the negative outcomes associated with SNS use and its consequences for users and society. KW - social networking sites KW - metric-based digital status KW - social comparisons KW - social status KW - envy KW - experiment Y1 - 2023 U6 - https://doi.org/10.1080/0960085X.2023.2290707 SN - 0960-085X SN - 1476-9344 SP - 1 EP - 28 PB - Taylor and Francis CY - London ER - TY - JOUR A1 - Zahedi, Anoushiravan A1 - Öznur Akalin, Renin A1 - Lawrence, Johanna E. A1 - Baumann, Annika A1 - Sommer, Werner T1 - The nature and persistence of the effects of posthypnotic suggestions on food preferences BT - the final report of an online study JF - Frontiers in psychology N2 - The persistence of food preferences, which are crucial for diet-related decisions, is a significant obstacle to changing unhealthy eating behavior. To overcome this obstacle, the current study investigates whether posthypnotic suggestions (PHSs) can enhance food-related decisions by measuring food choices and subjective ratings. After assessing hypnotic susceptibility in Session 1, at the beginning of Session 2, a PHS was delivered aiming to increase the desirability of healthy food items (e.g., vegetables and fruit). After the termination of hypnosis, a set of two tasks was administrated twice, once when the PHS was activated and once deactivated in counterbalanced order. The task set consisted of rating 170 pictures of food items, followed by an online supermarket where participants were instructed to select enough food from the same item pool for a fictitious week of quarantine. After 1 week, Session 3 mimicked Session 2 without renewed hypnosis induction to assess the persistence of the PHS effects. The Bayesian hierarchical modeling results indicate that the PHS increased preferences and choices of healthy food items without altering the influence of preferences in choices. In contrast, for unhealthy food items, not only both preferences and choices were decreased due to the PHS, but also their relationship was modified. That is, although choices became negatively biased against unhealthy items, preferences played a more dominant role in unhealthy choices when the PHS was activated. Importantly, all effects persisted over 1 week, qualitatively and quantitatively. Our results indicate that although the PHS affected healthy choices through resolve, i.e., preferred more and chosen more, unhealthy items were probably chosen less impulsively through effortful suppression. Together, besides the translational importance of the current results for helping the obesity epidemic in modern societies, our results contribute theoretically to the understanding of hypnosis and food choices. KW - hypnosis KW - online supermarket KW - posthypnotic suggestions (PHSs) KW - food choice KW - eating behavior KW - food preferences KW - Bayesian analysis KW - Bayesian generalized linear mixed model Y1 - 2023 U6 - https://doi.org/10.3389/fpsyg.2023.1123907 SN - 1664-1078 VL - 14 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Zahedi, Anoushiravan A1 - Öznur Akalin, Renin A1 - Lawrence, Johanna E. A1 - Baumann, Annika A1 - Sommer, Werner T1 - The nature and persistence of posthypnotic suggestions' effects on food preferences BT - an online study JF - Frontiers in nutrition : FNUT N2 - Food preferences are crucial for diet-related decisions, which substantially impact individual health and global climate. However, the persistence of unfavorable food preferences is a significant obstacle to changing eating behavior. Here we explored the effects of posthypnotic suggestions (PHS) on food-related decisions by measuring food choices, subjective ratings, and indifference points. In Session 1, demographic data and hypnotic susceptibility of participants were assessed. In Session 2, following hypnosis induction, PHS aiming to increase the desirability of healthy food was delivered. Afterward, a task set was administrated twice, once when PHS was activated and once deactivated. The order of PHS activation was counterbalanced across participants. The task set included a liking-rating task for 170 pictures of different food items, followed by an online supermarket where participants were instructed to select enough food for a fictitious week of quarantining from the same item pool. After 1 week, Session 3 repeated Session 2 without hypnosis induction in order to assess the persistence of PHS. The crucial dependent measures were food choices, subjective ratings, and the indifference points as a function of time and PHS condition. KW - eating behavior KW - food choice KW - food preferences KW - hypnosis KW - online-supermarket KW - posthypnotic suggestions Y1 - 2022 U6 - https://doi.org/10.3389/fnut.2022.859656 SN - 2296-861X VL - 9 PB - Frontiers Media CY - Lausanne ER - TY - JOUR A1 - Baum, Katharina A1 - Baumann, Annika A1 - Batzel, Katharina T1 - Investigating innovation diffusion in gender-specific medicine BT - insights from social network analysis JF - Business & information systems engineering N2 - The field of healthcare is characterized by constant innovation, with gender-specific medicine emerging as a new subfield that addresses sex and gender disparities in clinical manifestations, outcomes, treatment, and prevention of disease. Despite its importance, the adoption of gender-specific medicine remains understudied, posing potential risks to patient outcomes due to a lack of awareness of the topic. Building on the Innovation Decision Process Theory, this study examines the spread of information about gender-specific medicine in online networks. The study applies social network analysis to a Twitter dataset reflecting online discussions about the topic to gain insights into its adoption by health professionals and patients online. Results show that the network has a community structure with limited information exchange between sub-communities and that mainly medical experts dominate the discussion. The findings suggest that the adoption of gender-specific medicine might be in its early stages, focused on knowledge exchange. Understanding the diffusion of gender-specific medicine among medical professionals and patients may facilitate its adoption and ultimately improve health outcomes. KW - health data KW - gender-specific medicine KW - social network analysis KW - diffusion of innovations KW - Twitter Y1 - 2024 U6 - https://doi.org/10.1007/s12599-024-00875-6 SN - 2363-7005 SN - 1867-0202 VL - 66 IS - 3 SP - 335 EP - 355 PB - Springer Fachmedien CY - Wiesbaden ER - TY - JOUR A1 - Krause, Hannes-Vincent A1 - Große Deters, Fenne A1 - Baumann, Annika A1 - Krasnova, Hanna T1 - Active social media use and its impact on well-being BT - an experimental study on the effects of posting pictures on Instagram JF - Journal of computer-mediated communication : a journal of the International Communication Association N2 - Active use of social networking sites (SNSs) has long been assumed to benefit users' well-being. However, this established hypothesis is increasingly being challenged, with scholars criticizing its lack of empirical support and the imprecise conceptualization of active use. Nevertheless, with considerable heterogeneity among existing studies on the hypothesis and causal evidence still limited, a final verdict on its robustness is still pending. To contribute to this ongoing debate, we conducted a week-long randomized control trial with N = 381 adult Instagram users recruited via Prolific. Specifically, we tested how active SNS use, operationalized as picture postings on Instagram, affects different dimensions of well-being. The results depicted a positive effect on users' positive affect but null findings for other well-being outcomes. The findings broadly align with the recent criticism against the active use hypothesis and support the call for a more nuanced view on the impact of SNSs.
Lay Summary Active use of social networking sites (SNSs) has long been assumed to benefit users' well-being. However, this established assumption is increasingly being challenged, with scholars criticizing its lack of empirical support and the imprecise conceptualization of active use. Nevertheless, with great diversity among conducted studies on the hypothesis and a lack of causal evidence, a final verdict on its viability is still pending. To contribute to this ongoing debate, we conducted a week-long experimental investigation with 381 adult Instagram users. Specifically, we tested how posting pictures on Instagram affects different aspects of well-being. The results of this study depicted a positive effect of posting Instagram pictures on users' experienced positive emotions but no effects on other aspects of well-being. The findings broadly align with the recent criticism against the active use hypothesis and support the call for a more nuanced view on the impact of SNSs on users. KW - social networking sites KW - social media KW - Instagram KW - well-being KW - experiment KW - randomized control trial Y1 - 2022 U6 - https://doi.org/10.1093/jcmc/zmac037 SN - 1083-6101 VL - 28 IS - 1 PB - Oxford Univ. Press CY - Oxford ER -