Eye Tracking to Understand Impact of Aging on Mobile Phone Applications
Antony William Joseph, Jeevitha Shree DV, Kamal Preet Singh Saluja,, Abhishek Mukhopadhyay, Ramaswami Murugesh, Pradipta Biswas

TL;DR
This study investigates how aging impacts mobile phone user experience by analyzing eye tracking data from participants aged 20 to 60+ to understand cognitive workload and interface design implications.
Contribution
It provides novel insights into age-related differences in mobile interaction and offers design recommendations based on eye tracking metrics.
Findings
Older users show increased fixation durations and cognitive workload.
Participants aged 50+ have more difficulty completing tasks.
Design implications for age-friendly mobile interfaces.
Abstract
Usage of smartphones and tablets have been increasing rapidly with multi-touch interaction and powerful configurations. Performing tasks on mobile phones become more complex as people age, thereby increasing their cognitive workload. In this context, we conducted an eye tracking study with 50 participants between the age of 20 to 60 years and above, living in Bangalore, India. This paper focuses on visual nature of interaction with mobile user interfaces. The study aims to investigate how aging affects user experience on mobile phones while performing complex tasks, and estimate cognitive workload using eye tracking metrics. The study consisted of five tasks that were performed on an android mobile phone under naturalistic scenarios using eye tracking glasses. We recorded ocular parameters like fixation rate, saccadic rate, average fixation duration, maximum fixation duration and…
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