- Impact of Technology on Adolescents
- Green IT and Sustainability
- Child Development and Digital Technology
- Human Mobility and Location-Based Analysis
- Privacy, Security, and Data Protection
- Innovative Human-Technology Interaction
- Nutritional Studies and Diet
- Mobile Health and mHealth Applications
- Obesity, Physical Activity, Diet
- Interactive and Immersive Displays
- Evolutionary Psychology and Human Behavior
- Personality Traits and Psychology
- Digital Marketing and Social Media
- Date Palm Research Studies
- Psychological Well-being and Life Satisfaction
- Digital Mental Health Interventions
- Medicinal Plant Research
- Mind wandering and attention
- Mental Health Research Topics
- Urban Green Space and Health
- Behavioral Health and Interventions
- Nutrition, Genetics, and Disease
University of Bonn
2014-2025
German Institute of Human Nutrition
2025
Mounting evidence shows that smartphone usage heavily disrupts our work life and social activities. Moreover, it is possible overuse could resemble addictive tendencies. A key contributing factor to seems be of the messaging application WhatsApp. Although WhatsApp one most commonly used communication applications on smartphones, research in this area scarce. Given huge societal debate impact daily lives, present study undertook a large-scale investigation order provide numbers generally-and...
Smartphone usage is a hot topic in pervasive computing due to their popularity and personal aspect. We present our initial results from analyzing how individual differences, such as gender age, affect smartphone usage. The dataset comes large scale longitudinal study, the Menthal project. select sample of 30, 677 participants, which 16, 147 are males 14, 523 females, with median age 21 years. These have been tracked for at least 28 days they submitted demographic data through questionnaire....
Psychologists and psychiatrists commonly rely on self-reports or interviews to diagnose treat behavioral addictions. The present study introduces a novel source of data: recordings the actual problem behavior under investigation. A total N = 58 participants were asked fill in questionnaire measuring problematic mobile phone featuring several questions weekly usage. After filling questionnaire, all received an application be installed their smartphones, which recorded usage for five weeks....
Virtually everybody would agree that life satisfaction is of immense importance in everyday life. Thus, it not surprising a considerable amount research using many different methodological approaches has investigated what the best predictors are. In present study, we have focused on several key potential influences including bottom-up and top-down models, cross-cultural effects, demographic variables. four independent (large scale) surveys with sample sizes ranging from N = 488 to 40,297,...
In the present study we link self-report-data on personality to behavior recorded mobile phone. This new approach from Psychoinformatics collects data humans in everyday life. It demonstrates fruitful collaboration between psychology and computer science, combining Big Data with psychological variables. Given large number of variables, which can be tracked a smartphone, focuses traditional features phones – namely incoming outgoing calls SMS. We observed N = 49 participants respect...
Tracking users across websites and apps is as desirable to the marketing industry it unalluring users. The central challenge lies in identifying from perspective of different apps/sites. While there are methods identify via technical settings their phones, these prone countermeasures. Yet, this paper, we show that possible differentiate set used apps, app signature. To end, investigate usage 46726 participants Menthal project. Even limiting our observation 500 globally most frequent results...
Abstract Background Repeated applications of short-term dietary assessment instruments are recommended for estimating usual intake. For this purpose, NutriDiary, a smartphone app collecting weighed records (WDRs) in the German population, was developed. Objective We aim to describe NutriDiary and evaluate its usability acceptability. Methods developed as WDR, allowing users enter food items via text search, barcode scanning, or free entry. The sample evaluation study included 74 participants...
We present a framework for collecting and analyzing mobile users' data. have built our own in order to fulfill specific tracking requirements such as app usage affect/mood recording. incentivize the users share their data through giving feedback. The UX interface are primary concerns Android app. To be able process large amounts of we developed analysis platform using modern big stack. has been deployed scale longitudinal experiment since January 2014. It attracted more than 400, 000...
Pokémon GO was a short lived mobile location-based gaming phenomenon. After its launch in July 2016, it quickly reached 500 million installs, but afterwards interest faded. As part of large scale "in the wild" phone study we have recorded usage and location measurements between June September 2016. We investigate who were people installed played what effects had on their behaviour. chose as middle point start playing game, selected users that activity for at least two weeks before after it....
We present some of the methods for quantifying mobile phone usage used in Menthal app. show that single numbers work promoting an idea but more complex visualizations retain users. The app works as a digital scale and keeps user updated with his current habits. In particular we describe MScore, simple way by number. By displaying it notification, are reminding users their potential overuse. information way, allowing to dig deeper into different aspects behaviour through dashboard....
<sec> <title>BACKGROUND</title> According to Statista, by 2024, the global number of mobile phone users is set reach an astounding 6.93 billion, equating 85.74% world's population. This figure expected soar beyond 7.7 billion 2028. Mobile technology also brings with it a plethora physical and psychological challenges. Physical ailments include issues such as head neck discomfort, tendonitis, eye-related like eye strain, blurred vision, acute acquired esotropia. Psychologically, excessive use...
Abstract Smartphone technology has the potential to facilitate dietary assessment in epidemiological studies. Measurement error might be reduced by real time recording being more feasible with mobile methods. Our aim was develop NutriDiary, a smartphone app for conducting three-day weighed records. It provides digital version of established pen-and-paper method Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study, an open cohort study from infancy adulthood....