---

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 20 th 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.

---

Health Care Technologies and Services for the Elderly.- Building an Ontology for Eldercare Service in China with a Hierarchical Clustering Method.- Interoperability and Convergence for Welfare Technology.- A Knowledge Graph for Eldercare: Constructing a Domain Entity Graph with Guidelines.- Augmented Reality in Tablets for the Yerkes Test for Older Adults.- Innovation Method of Health Products Design for Elderly Adults Based on Perceived Quality and User Experience.- A User-centred Ethical Assessment of Welfare Technologies for Elderly.- Obstacles of Utilizing a Self-management APP for Taiwanese Type II Diabetes Patients.- Impact of Virtual Reality (VR) Experience on Older Adults´ Well-Being.- Positive Impact of Exergaming on Older Adults´ Mental and Social Well-being: In Search of Evidence.- AR-PETS: Development of an Augmented Reality Supported Pressing Evaluation Training System.- Technology-Enabled Medication Adherence for Seniors Living in the Community: Experiences, Lessons, and The Road Ahead.- The Old People Using Intelligent Mobile Equipment Influence Extent.- Factor Analysis of Perceived Quality and User Experience of Health Products for Elderly Adults.- Usability Assessment of a Web-based Self-Directed Learning (SDL) System for Chinese Dementia Caregivers.- The Effect of Hypertension Health Management (HHM) using IT for the Elderly: A Case Study in an Underdeveloped Area of China.- Decisions about Medical Data Disclosure in the Internet: An Age Perspective.- Intelligent Environments for Aging.- A Framework for Pervasive & Ubiquitous Geriatric Monitoring.- User-specific Concepts of Aging - A Qualitative Approach on AAL-Acceptance Regarding Ultrasonic Whistles.- Kinecting Frailty: A Pilot Study on Frailty.- Detecting Parkinson´s Disease Using Gait Analysis with Particle Swarm Optimization.- Methods to Design Home Support for Elders.- Unobtrusive detection of frailty in older adults.- Monitoring Thermal Comfort with IoT Technologies: A Pilot Study in Chinese Eldercare Centers.- Reflections on the effectiveness of a high density ambient sensor deployment for monitoring Healthy Aging.- Interpersonal Distancing in Cooperation - Effect of Confederate´s Interpersonal Distance Preferences.- Identifying Elderlies at Risk of Becoming More Depressed with Internet-of-Things.- Smart TV for Older Adults: A Comparative Study of the Mega Menu and Tiled Menu.- Privacy at Home: an Inquiry into Sensors and Robots for the Stay at Home Elderly.- Perspectives on Design of Sensor based Exergames Targeted Towards Older Adults.- Privacy and Future Consent in Smart Homes as Assisted Living Technologies.- Needs and Attitudes of Friendly Chinese Restaurant among Older Adults: Results from a Pilot Study.- Investigating Older Adults´ Preferences for Functions within a Human-Machine Interface Designed for Fully Autonomous Vehicles.- An Experimental Study on Intelligent Kitchen Appliances´ Interface Information Preference Based on Visual Characteristics of the Elderly.- Games and Entertainment for the Elderly.- Gen X and Digital Games: Looking Back to Look Forward.- An analysis of Crossword Learning: a mobile application for the elderly.- Creating an Online Escape Room Game for Older Adults: Needs Assessment, Design Process, and Usability Testing.- Innovative game concepts for Alzheimer patients.- Pumpkin Garden: A Mobile Game Platform for Monitoring Parkinson´s Disease Symptoms.- Pilot study of Piano Learning with AR Smart glasses Considering Both Single and Paired Play.- Attitudes and Perceptions of Older Chinese People in Hong Kong towards Silver Gaming.

---