The thesis deals with a psychosocial situation of siblings of children with a pervasiv disorder. The labour surveys new findings about the autism and an effect of autistic child on its sibling in the theoretical part. The part devoted to the autism is mostly focused on neurobiological findings of this disease. The part about siblings is specialised in pieces of knowledge from available researches and describes the present condition of scientific knowledge. The empirical part describes a psychosocial situation of siblings of autistic children. A qualitative method was used during the research. The main used method is a test called "FAST" (Family System Test) and a follow-up interview. The diploma work goes towards a deeper understanding of a psychological and social situation of a healthy sibling. Detailed studies of cases which indicate possible risks resulting from living with an autistic child are presented in the project. There are also mentioned tendencies of further research progress. Keywords: Siblings, autism, psychosocial situation of siblings.

(in English) Thesis deals with biological children of parents, who have other kids in foster care. These kids are often neglected. In the theoretical part are described and defined terms such as a substitute foster family and its forms, family, siblings. It focuses also on selected foreing researches and contemporary Czech works on this topic. Practical part contains analyzes of interviews with respondents. The main aim was to find out what biological children of their parents in general think of foster care. How they perceive the situation in their own family and how it affects them.

This dissertation is focusing on definitions of some typical features of a family unit and its impact on their child´s free time use. These aspects are for e.g. completeness of the family, child´s status among their brothers and sisters, level of parents´ education and the social strata of parents. The dissertation is divided into theoretical and practical part. In the beginning of the theoretical part the question of family, definition according to the number of members, and other features implicated from the family status are being discussed. Second part concern the free time and children´s education out of school. The theory is followed by purely practical part of my dissertation in which I conduct a research. The main question for my research was if the above mentioned aspects of the family unit can have an impact on the way a child spends their free time. Results of this probe have been concluded and demonstrated by graphs and tables at the end of the dissertation.