Aging and Technology Acceptance -- Desktop PC, Tablet PC, or Smartphone? An Analysis of Use Preferences in Daily Activities for Different Technology Generations of a Worldwide Sample -- Assistive Technology and Emotions of Older People - Adopting a Positive and Integrated Design Approach -- The Perception of Aging and Use of Robots -- Gendering Old Age: The Role of Mobile Phones in the Experience of Aging for Women -- Change Is Gonna Come - The Effect of User Factors on the Acceptance of Ambient Assisted Living -- Acceptance and practical use of assistive technologies for frail seniors and caregivers: Interview surveys on nursing homes -- Older people and technology acceptance -- Keeping in Touch: Mobile Apps Use by Older Adults -- Study on the current situation of urban empty nest elderly of community home care and innovation strategy -- Overcoming the Vulnerability of Older Adults in Contemporary Media Ecosystem (International Policies and Bulgarian Survey) -- Long-Term Appropriationof Smartwatches among a Group of Older People -- Attitudes towards Aging and the Acceptance of ICT for Aging in Place -- A Qualitative Investigation on Chinese Middle-aged People's ICT Adoption and Use -- Senior Citizens Usage Towards and Perception of Modern Technology in India -- A Study on the Behavior of Using Intelligent Television among the Elderly in New Urban Areas -- Aging and Interaction -- Evaluation and Analysis of the Features and Applications of 3D Model Platforms -- It still matters: Preference in visual appearance of stimuli among people in the late stages of dementia -- An Evaluation of User Experience of Web Main Menu on Different Mobile Devices. -How Do Older Adults View Online Health Webpages? Preliminary Results from Eye Tracking Data -- Confronting Common Assumptions About the Psychomotor Abilities of Older Adults Interacting With Touchscreens -- A Review of Age-related Characteristics for Touch-based Performance and Experience -- Acoustical Evaluation for the Renovation of Multipurpose Performance Hall -- Viewing angle, depth and directionality of 2D and 3D icons -- A Study on Haptic Feedback Awareness of Senior Citizens -- Cognitive aging and in-car system operations: A proposal for an age-friendly system using a cognitive model-based approach -- Optimal Data Entry Designs in Mobile Web Surveys for Older Adults -- Is Co-Creation Superior to User Centred Design? Preliminary Results from User Interface Design for Inclusive Public Transport -- Online Learning for Long-Query Reduction in Interactive Search for Experienced Workers -- Eye Movements and Reading Behavior of Younger and Older Users: An Exploratory Eye-Tacking Study -- Semantic Understanding and Task-Oriented for Image Assessment -- Intergenerational Communication and Social Participation. - Mobile Digital Storytelling in a Brazilian Care Home -- The Use of Social Media among Senior Citizens in Portugal: Active Ageing through an Intergeneration Approach -- New Media, New Commodification, New Consumption for Older People -- Technology: a Bridge or a Wall? The Inter(intra)generational Use of ICTs among Italian Grandmothers -- Design Empowerment for Older Adults -- The Role of New Media in Communicating and Shaping Older Adult Stories -- Promising Practices in Collaborative Digital Literacy and Digital Media-Making with Older Adults -- Evaluating a Smartphone-based Social Participation App for the Elderly -- Play it Again, Grandma: Effect of Intergenerational Video Gaming on Family Closeness -- The Big Meaning of Small Messages: The Use of WhatsApp in Intergenerational Family Communication -- Impact of Online Social Media Communication and Offline Geographical Distance on Elder Users' Intergenerational Isolation: From Technology Affordance Perspective -- The Comparative Study of Emotional Interaction Design of Empty Nesters in Urban and Rural Areas in China -- Gamified Design for the Intergenerational Learning: A Preliminary Experiment on the Use of Smartphones by the Elderly -- Intergenerational Play between Young People and Old Family Members: Patterns, Benefits, and Challenges.

This book constitutes the proceedings of the 4th International Conference onHuman Aspects of IT for the Aged Population, ITAP 2018, held as part of the 20th International Conference, HCI International 2018, which took place in Las Vegas, Nevada, in July 2018. The total of 1171 papers and 160 posters included in the 30 HCII 2018 proceedings volumes was carefully reviewed and selected from 4346 submissions. ITAP 2018 includes a total of 84 papers. They were organized in topical sections as follows: Part I: aging and technology acceptance; aging and interaction; intergenerational communication and social participation. Part II: health care technologies and services for the elderly; intelligent environments for aging; and games and entertainment for the elderly.