Effects of Looking Back on Smartphone Photography on Positive Emotions

This paper investigated whether people increase their positive emotions by looking back on photos taken with their smartphones at the end of the day and week. This study developed an iOS application as an experimental platform that supports taking pictures that evoke feelings of pleasure and relaxation and looks back on them at the end of the day and week. This study hypothesized that people who look back on photography with the application increase more positive feelings. This study then tested the hypothesis with 14 participants by investigating a case where a user used the application for one week and a case where a user did not use the application for one week. The psychometric evaluation results showed that nine out of 14 participants had enjoyed using the application and those with the application felt more positive emotions at the end of the day and week than users without it.