Uživatelská reflexe používání sociálních sítí a vnímání jejich dopadů na psychiku

The thesis deals with the topic of users' self-reflection on the use of social networking sites and perceptions of their impact on mental well-being. The aim is to analyse reflection through users' feelings in specific everyday situations. Four chapters are devoted to literature research from several perspectives. First, social networking sites and the techniques by which they influence users are introduced. Then, the focus is on the users themselves - the effects of the techniques on their mental well-being, people's motivation to use the social networking sites and the issue of digital well-being. Qualitative research is conducted in the context of the four research questions that focus on user feelings, strengths/weaknesses, and change in network use. Data are collected using semi-structured interviews and user diaries. They are evaluated for individual research participants and further generalized in a grounded theory. Main finding is that users perceive the use of social networking sites positively in relation to their mental well-being, although they are aware of many negative feelings when using networks. The theory builds a model that describes the user's self-reflection process and defines its four types according to the user's motivation to change habits on networks and his interest in self-reflection.