Peter Vorderer is a professor of media and communication studies at the University of Mannheim. Previous affiliations include the University of Toronto, Hanover University of Music, Drama and Media, the University of Southern California, and the VU University of Amsterdam. He served as president of the International Communication Association (ICA) from 2014 to 2015. His research focuses on media use and media effects with a special interest in entertainment research and new media and how permanent connectedness with others via mobile devices changes individuals and society at large.Dorothée Hefner is a research associate at the Hanover University of Music, Drama and Media. Her research focuses on (permanent) mobile phone use and digital connectedness and their antecedents, as well as implications for interpersonal communication, political information, and individual well-being. Leonard Reinecke is an assistant professor at the Department of Communication at Johannes Gutenberg University Mainz, Germany. His research focuses on media uses and effects, media entertainment, and online communication. He has conducted research on various aspects of media use and well-being, including media-induced recovery from stress and strain and the interaction of media use and self-control.Christoph Klimmt is a professor of communication at Hanover University of Music, Drama and Media. Beyond research on media entertainment, video games in particular, he is interested in media effects in news, advertising, risk, health, and science communication. Klimmt is currently serving as associate editor of the Journal of Media Psychology.

• IntroductionChapter 1: A brief history of individual addressability: The role of mobile communication in being permanently connected Chapter 2: The Permanently Online and Permanently Connected Mind: Mapping the Cognitive Structures behind Mobile Internet UseChapter 3: Methodological Challenges of POPC for Communication ResearchChapter 4: Reconceptualising uses and gratifications vis-à-vis smartphone applications: The case of WhatsAppChapter 5: Always On? Explicating Impulsive Influences on Media UseChapter 6: Permanence of Online Access and Internet AddictionChapter 7: Multitasking: Does It Actually Exist?Chapter 8: Threaded Cognition Approach to Multitasking and Activity Switching in a Permanently Online and Permanently Connected EcosystemChapter 9: Living in the moment: Self-Narratives of Permanently Connected Media UsersChapter 10: Getting the Best Out of POPC While Keeping the Risks in Mind: The Calculus of Meaningfulness and PrivacyChapter 11: The Experience of Narrative in the Permanently Online, Permanently Connected Environment: Multitasking, Self-Expansion, and Entertainment EffectsChapter 12: Being POPC together: Permanent Connectedness and Group DynamicsChapter 13: POPC and Social RelationshipsChapter 14: Between Surveillance and Sexting: Permanent Connectedness and Intimate RelationshipsChapter 15: Growing Up Online: Media Use and Development in Early AdolescenceChapter 16: Being Mindfully Connected – Responding to the Challenges of Adolescents living in a POPC WorldChapter 17: Permanent Connections Around the GlobeChapter 18: The POPC Citizen: Political Information in the Fourth Age of Political CommunicationChapter 19: The Networked Young Citizen as POPC (permanently online, permanently connected) CitizenChapter 20: Permanent Entertainment and Political BehaviorChapter 21: POPC and Well-Being: A Risk-Benefit AnalysisChapter 22: Being permanently online and being permanently connected at work: A demands-resources perspectiveChapter 23: The Dose Makes the Poison: Theoretical Considerations and Challenges of Health-Related POP

Peter Vorderer is a professor of media and communication studies at the University of Mannheim. Previous affiliations include the University of Toronto, Hanover University of Music, Drama and Media, the University of Southern California, and the VU University of Amsterdam. He served as president of the International Communication Association (ICA) from 2014 to 2015. His research focuses on media use and media effects with a special interest in entertainment research and new media and how permanent connectedness with others via mobile devices changes individuals and society at large.Dorothée Hefner is a research associate at the Hanover University of Music, Drama and Media. Her research focuses on (permanent) mobile phone use and digital connectedness and their antecedents, as well as implications for interpersonal communication, political information, and individual well-being. Leonard Reinecke is an assistant professor at the Department of Communication at Johannes Gutenberg University Mainz, Germany. His research focuses on media uses and effects, media entertainment, and online communication. He has conducted research on various aspects of media use and well-being, including media-induced recovery from stress and strain and the interaction of media use and self-control.Christoph Klimmt is a professor of communication at Hanover University of Music, Drama and Media. Beyond research on media entertainment, video games in particular, he is interested in media effects in news, advertising, risk, health, and science communication. Klimmt is currently serving as associate editor of the Journal of Media Psychology.

• IntroductionChapter 1: A brief history of individual addressability: The role of mobile communication in being permanently connected Chapter 2: The Permanently Online and Permanently Connected Mind: Mapping the Cognitive Structures behind Mobile Internet UseChapter 3: Methodological Challenges of POPC for Communication ResearchChapter 4: Reconceptualising uses and gratifications vis-à-vis smartphone applications: The case of WhatsAppChapter 5: Always On? Explicating Impulsive Influences on Media UseChapter 6: Permanence of Online Access and Internet AddictionChapter 7: Multitasking: Does It Actually Exist?Chapter 8: Threaded Cognition Approach to Multitasking and Activity Switching in a Permanently Online and Permanently Connected EcosystemChapter 9: Living in the moment: Self-Narratives of Permanently Connected Media UsersChapter 10: Getting the Best Out of POPC While Keeping the Risks in Mind: The Calculus of Meaningfulness and PrivacyChapter 11: The Experience of Narrative in the Permanently Online, Permanently Connected Environment: Multitasking, Self-Expansion, and Entertainment EffectsChapter 12: Being POPC together: Permanent Connectedness and Group DynamicsChapter 13: POPC and Social RelationshipsChapter 14: Between Surveillance and Sexting: Permanent Connectedness and Intimate RelationshipsChapter 15: Growing Up Online: Media Use and Development in Early AdolescenceChapter 16: Being Mindfully Connected – Responding to the Challenges of Adolescents living in a POPC WorldChapter 17: Permanent Connections Around the GlobeChapter 18: The POPC Citizen: Political Information in the Fourth Age of Political CommunicationChapter 19: The Networked Young Citizen as POPC (permanently online, permanently connected) CitizenChapter 20: Permanent Entertainment and Political BehaviorChapter 21: POPC and Well-Being: A Risk-Benefit AnalysisChapter 22: Being permanently online and being permanently connected at work: A demands-resources perspectiveChapter 23: The Dose Makes the Poison: Theoretical Considerations and Challenges of Health-Related POP

Peter Vorderer is a professor of media and communication studies at the University of Mannheim. Previous affiliations include the University of Toronto, Hanover University of Music, Drama and Media, the University of Southern California, and the VU University of Amsterdam. He served as president of the International Communication Association (ICA) from 2014 to 2015. His research focuses on media use and media effects with a special interest in entertainment research and new media and how permanent connectedness with others via mobile devices changes individuals and society at large.Dorothée Hefner is a research associate at the Hanover University of Music, Drama and Media. Her research focuses on (permanent) mobile phone use and digital connectedness and their antecedents, as well as implications for interpersonal communication, political information, and individual well-being. Leonard Reinecke is an assistant professor at the Department of Communication at Johannes Gutenberg University Mainz, Germany. His research focuses on media uses and effects, media entertainment, and online communication. He has conducted research on various aspects of media use and well-being, including media-induced recovery from stress and strain and the interaction of media use and self-control.Christoph Klimmt is a professor of communication at Hanover University of Music, Drama and Media. Beyond research on media entertainment, video games in particular, he is interested in media effects in news, advertising, risk, health, and science communication. Klimmt is currently serving as associate editor of the Journal of Media Psychology.

• IntroductionChapter 1: A brief history of individual addressability: The role of mobile communication in being permanently connected Chapter 2: The Permanently Online and Permanently Connected Mind: Mapping the Cognitive Structures behind Mobile Internet UseChapter 3: Methodological Challenges of POPC for Communication ResearchChapter 4: Reconceptualising uses and gratifications vis-à-vis smartphone applications: The case of WhatsAppChapter 5: Always On? Explicating Impulsive Influences on Media UseChapter 6: Permanence of Online Access and Internet AddictionChapter 7: Multitasking: Does It Actually Exist?Chapter 8: Threaded Cognition Approach to Multitasking and Activity Switching in a Permanently Online and Permanently Connected EcosystemChapter 9: Living in the moment: Self-Narratives of Permanently Connected Media UsersChapter 10: Getting the Best Out of POPC While Keeping the Risks in Mind: The Calculus of Meaningfulness and PrivacyChapter 11: The Experience of Narrative in the Permanently Online, Permanently Connected Environment: Multitasking, Self-Expansion, and Entertainment EffectsChapter 12: Being POPC together: Permanent Connectedness and Group DynamicsChapter 13: POPC and Social RelationshipsChapter 14: Between Surveillance and Sexting: Permanent Connectedness and Intimate RelationshipsChapter 15: Growing Up Online: Media Use and Development in Early AdolescenceChapter 16: Being Mindfully Connected – Responding to the Challenges of Adolescents living in a POPC WorldChapter 17: Permanent Connections Around the GlobeChapter 18: The POPC Citizen: Political Information in the Fourth Age of Political CommunicationChapter 19: The Networked Young Citizen as POPC (permanently online, permanently connected) CitizenChapter 20: Permanent Entertainment and Political BehaviorChapter 21: POPC and Well-Being: A Risk-Benefit AnalysisChapter 22: Being permanently online and being permanently connected at work: A demands-resources perspectiveChapter 23: The Dose Makes the Poison: Theoretical Considerations and Challenges of Health-Related POP