A Mutlimodal Approach to Measure the Levels Distraction of Pedestrians using Mobile Sensing

The emergence of smart phones has had a positive impact on society as the range of features and automation has allowed people to become more productive while they are on the move. On the contrary, the use of these devices has also become a distraction and hindrance, especially for pedestrians who use their phones whilst walking on the streets. This is reinforced by the fact that pedestrian injuries due to the use of mobile phones has now exceeded mobile phone related driver injuries. This paper describes an approach that measures the different levels of distraction encountered by pedestrians whilst they are walking. To distinguish between the distractions within the brain the proposed work analyses data collected from mobile sensors (accelerometers for movement, mobile EEG for electroencephalogram signals from the brain). The long-term motivation of the proposed work is to provide pedestrians with notifications as they approach potential hazards while they walk on the street conducting multiple tasks such as using a smart phone

The Vibrotactile Experience of the HOME Button on Smartphones

The vibration of the virtual HOME button is very important for smartphone users. To understand the user experience of different vibration modes of the HOME button, we designed 2 experiments to study this issue. Study 1 compared 4 different HOME buttons that were experienced either in or out of visual sight. The results showed that the perceived intensity was the key factor related to the tactile experience of the HOME button regardless of the particular vibration mode. Study 2 explored the influence of vibration intensity on users&rsquo; tactile experiences. The results showed that the frequency and amplitude of the vibration had a significant positive relationship with the overall evaluation of the tactile experience. More importantly, this effect was mediated by the perceived intensity. These results have implications for designing vibration modes that satisfy the needs of smartphone users. &copy; 2019, Springer Nature Switzerland AG.</p